When an action potential reaches a Node of Ranvier, the initial event in the next node is the opening of voltage-gated sodium channels. Here option B is the correct answer.
In a myelinated axon, the propagation of an action potential is characterized by a process called saltatory conduction. This process involves the rapid and efficient transmission of electrical signals from one Node of Ranvier to the next, skipping over the myelinated regions of the axon.
These channels are responsible for generating the depolarization phase of the action potential, which is necessary for the transmission of the electrical signal down the axon.
As the depolarization wave travels down the axon, it encounters the next Node of Ranvier, where the voltage-gated sodium channels open once again to generate a new action potential. This process continues along the length of the axon until the electrical signal reaches its target destination, such as a muscle fiber or another neuron.
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Why does a muscle return to its original length after being stretched?
*It is elastic.
It is malleable.
It is extensible.
It is contractible.
Answer:
a. It is elastic.
Explanation: is correct. post protected
Which of the following are definitions of the term adaptation? Choose 2 answers: Choose 2 answers:
A) a structure that persists in an organism due to its evolutionary history despite not providing any modern advantage in terms of survival or reproduction
B) a heritable trait that increases an organism’s fitness in its environment
C) a trait with a genetic basis that makes an organism faster or stronger
D) a process by which heritable traits that increase organisms’ fitness in their environment become dominant in a population
The statements B) a heritable trait that increases an organism’s fitness in its environment C) a trait with a genetic basis that makes an organism faster or stronger are definitions of the term adaptation.
What is an adaptation in terms of evolution?An adaptation in terms of evolution makes reference to all phenotypic traits in an organism that confer an advantage in a particular environment in order to survive and or reproduce,
Therefore, with this data, we can see that an adaptation in terms of evolution refers to features that help to survival or reproduction.
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How are photosynthesis and respiration related?
Function, Photosynthesis, Cellular Respiration, Significance, Considerations.
HOPE IT HELPS :)
Answer:
The products of photosynthesis are the reactants of cellular respiration; the products of cellular respiration are the reactants for photosynthesis.
Explanation:
Photosynthesis uses CO2, sunlight, and H2O to create glucose (C6H12O6) and O2. Cellular respiration uses glucose (C6H12O6) and O2 to create ATP (energy molecules), carbon dioxide, and H2O. One cannot exist without the other. They also help balance out CO2 and O2 levels in the atmosphere.
glycolysis is the metabolic pathway that group of answer choices splits glucose into two molecules of pyruvate creates glucose molecules from glycogen generates glucose from glucogenic amino acids synthesizes glycogen
Glycolysis is a metabolic pathway that : splits glucose into two molecules of pyruvate.
What is meant by glycolysis?Glycolysis is defined as a series of reactions that extract energy from glucose by splitting it into two three-carbon molecules called pyruvates.
Glycolysis is that metabolic pathway that converts glucose into pyruvate and free energy released during the biochemical reactions in glycolysis is used to generate net gain of two molecules of ATP.
Glycolysis is linear metabolic pathway of enzyme-catalyzed reactions that converts glucose into two molecules of pyruvate and in the presence of oxygen or two molecules of lactate in absence of oxygen.
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synthetic biologists are trying to create cells from raw material. one step in the process is encapsulating genetic material into a compartment. researchers of the origin of life think that the earliest cells on earth may have used rna as their genetic material instead of dna. as biologists consider which genetic material to use in creating their synthetic cells, which of the following characteristics of a single-stranded rna genome should they keep in mind?
The characteristic of a single-stranded RNA genome that should be kept in mind is b) a newly synthesized RNA strand is not identical to the template strand.
RNA can be described as a nucleic acid molecule that is made up of a single strand. On the other hand, DNA can be described as a nucleic acid molecule made up of two strands.
Synthetic biologists, when considering single-stranded RNA genomes should keep in mind that a newly synthesized RNA strand cannot act as a template strand for forming another nucleotide strand. This is because the information on the RNA strand will be decoded only by the formation of amino acids. Hence, the RNA molecule will not be able to serve as genetic material for synthetic biologists.
Although a part of your question is missing, you might be referring to this question:
Synthetic biologists are trying to create cells from raw materials. one step in the process is encapsulating genetic material into a compartment. researchers of the origin of life think that the earliest cells on earth may have used RNA as their genetic material instead of DNA. as biologists consider which genetic material to use in creating their synthetic cells, which of the following characteristics of a single-stranded RNA genome should they keep in mind?
a) RNA genome will be unstable
b) a newly synthesized RNA strand is not identical to the template strand
c) RNA genome will become double-stranded
d) RNA genome will not be transferred
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true or false? in most fungi, fertilization is complete after the cells fuse together.
Answer:
True
Explanation:
In most fungi, fertilization is complete after the cells fuse together. in most fungi, fertilization is a two-step process consisting of the fusion of cells and then the fusion of nuclei in the fused cells. Where does meiosis occur in a mushroom?
How are names and formulas written for covalent compounds?
Answer:
Naming binary (two-element) covalent compounds is similar to naming simple ionic compounds. The first element in the formula is simply listed using the name of the element. The second element is named by taking the stem of the element name and adding the suffix
PLEASE HELP!
The light reaction of photosynthesis is responsible for producing most of the free ______ found on planet Earth.
Answer:
oxygen gas
Explanation:
an autopsy is being performed on a 44 year old femal who died unexpectely of heart failure. which componenets of the pathologist repor is most
The component of the pathologist's report that is most suggestive of a possible history of poorly controlled blood pressure, in this case, is "Bilateral renal hypertrophy noted."
Renal hypertrophy, often known as kidney enlargement, can be brought on by chronically high blood pressure (hypertension). The kidneys' blood arteries are stressed by persistently high blood pressure, which causes damage and eventually causes the organ to expand. As a result, the existence of bilateral renal hypertrophy in the autopsy report strongly suggests a history of uncontrolled high blood pressure.
The blood arteries throughout the body, including those in the kidneys, are put under stress when blood pressure is regularly raised over an extended length of time. By filtering waste materials, and extra fluids, and preserving electrolyte balance, the kidneys play a crucial part in controlling blood pressure. The kidneys' capacity to operate properly can be compromised by chronic hypertension, which can harm the tiny blood arteries within the kidneys. The kidneys go through hypertrophy to make up for the damaged blood arteries and decreased filtration capacity. The goal of this growth is to increase the kidney's surface area and improve its capacity to filter blood. It is an adaptive reaction.
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Your question is incomplete. The complete question is:
An autopsy is being performed on a 44-year-old female who died unexpectedly of heart failure. Which of the following components of the pathologist's report is most suggestive of a possible history of poorly controlled blood pressure?
1)"Scarring of urethra suggestive of recurrent urinary tract infections is evident."
2)"Bilateral renal hypertrophy noted."
3)"Vessel wall changes suggestive of venous stasis are evident."
4)"Arterial sclerosis of subcortical brain regions noted."
most species of bacteria cannot be eaten by humans because the bacteria contain. True/False ?
Most species of bacteria cannot be eaten by humans because the bacteria contain toxic levels of nucleotides.
The smallest single-celled living things are called bacteria. There are countless varieties of bacteria. Your body contains a variety of things that are good for you. Your microbiome, which is made up of these bacteria, maintains your body healthy. You may become ill from other bacteria. Antibiotics are commonly used by medical professionals to treat bacterial infections. In comparison to eukaryotes, several bacterial species may contain 8% of their weight in nucleotides. Humans are poisoned by such high concentrations of nitrogen-containing nucleotides.
Bacteria are single-celled, microscopic living things. The word for just one is “bacterium.”
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the molecule that an enzyme binds to is known as its
Answer:
substrates
Explanation:
Enzymes catalyze the reactions of substrate molecules. If a molecule merely binds (and does not react), this molecule is called a "Ligand".
Of example, Glucose is a substrate for the hexokinase in the first step of glycolysis.
Gamma Amino Butyric Acid (GABA) is a neurotransmitter and ligand for GABA receptor proteins (ionotropic and G-protein coupled receptors or metabotropic receptors). GABA is not chemically modified - only binds.
The molecule that an enzyme binds to is known as its substrate.
What are enzymes?Enzymes are proteins that catalyze chemical reactions in the body. They do this by bringing together the reactants of a chemical reaction (the substrates) in such a way that the reaction can occur more efficiently.
Each enzyme is specific to a particular type of substrate, and it will bind to that substrate in a specific way. The enzyme will form a temporary complex with the substrate, and the chemical reaction will take place within this complex. Once the reaction is complete, the enzyme is released from the complex and is able to bind to more substrate molecules and catalyze more reactions.
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What is the name for a molecule that is made of two sugar monomers bonded together?
A.monosaccharide
B.disaccharide
C.saccharide
D.polysaccharide
Explanation:
The name for a molecule that is made of two sugar monomers bounded together is disaccharides
Please help meeeeeeeeeeeewwwww
Answer:
ok
Explanation:
yes
Answer:
i dont know
Explanation:
Q. What are peristaltic movements ?
➜ The contraction and expansion movements of the walls of food pipe are called peristaltic movements.
This movement pushes the food in forward direction in the alimentary canal.In what way is the dialysis membrane like the cell membrane? (In ur own words)
Answer:
mimics the diffusion and osmosis processes of the cell membraneLike a cell membrane, dialysis tubing has a semi-permeable membrane, which allows small molecule to permeate through the membrane. Thus, the dialysis tubing
Explanation:
hope it helps
Answer:
Like a cell membrane, dialysis tubing has a semi-permeable membrane, which allows small molecule to permeate through the membrane. Thus, the dialysis tubing mimics the diffusion and osmosis processes of the cell membrane (Alberts, 2002).
Explanation:
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In guinea pigs, the rough coat is dominant (R) to smooth coat (r), and black coat (B) is dominant to white coat (b). A rough black guinea pig bred with a rough white one produces 29 rough black offspring, 31 rough white offspring, 11 smooth black offspring, and 9 smooth white offspring. Give the genotypes of the parents, the probability for the offspring, and the actual number of each kind of offspring you would expect.
_______ Genotype of the rough, black parent? _______ Genotype of the rough, white parent?
________ What is the probability of getting rough, black offspring?
________ What is the probability of getting rough, white offspring?
________ What is the probability of getting smooth, black offspring?
________ What is the probability of getting smooth, white offspring?
________ Of the 80 offspring that were produced, we might have expected how many of them to be rough and black?
________ Of the 80 offspring that were produced, we might have expected how many of them to be rough and white?
________ Of the 80 offspring that were produced, we might have expected how many of them to be smooth and black?
________ Of the 80 offspring that were produced, we might have expected how many of them to be smooth and white?
The offspring produced were 29 rough black, 31 rough white, 11 smooth black, and 9 smooth white guinea pigs. The genotypes of the parents are as follows: the rough black parent has the genotype RrBb, and the rough white parent has the genotype Rrbb. The probabilities of getting each type of offspring can be calculated using Punnett squares. The expected numbers of each kind of offspring are as follows: 32 rough black, 16 rough white, 16 smooth black, and 16 smooth white.
Based on the given information, the rough black guinea pig must have the genotype RrBb. This is because rough coat (R) and black coat (B) are dominant traits, so if the guinea pig is rough and black, it must have at least one dominant allele for each trait.
Similarly, the rough white guinea pig must have the genotype Rrbb. The rough coat (R) is still dominant, but the white coat (b) is the recessive trait. Therefore, the guinea pig must have one dominant allele for rough coat (R) and two recessive alleles for white coat (bb).
The probability of getting rough black offspring can be calculated by multiplying the probabilities of inheriting the dominant alleles for rough coat (R) and black coat (B). Since both parents are heterozygous (RrBb), the probability is 0.5 × 0.5 = 0.25, or 25%.
Similarly, the probabilities for rough white, smooth black, and smooth white offspring can be calculated using the same method. The probabilities for rough white, smooth black, and smooth white offspring are also 25%.
To determine the expected numbers of each type of offspring, we can multiply the total number of offspring (80) by the probabilities calculated above. Therefore, we would expect 20 rough black, 20 rough white, 20 smooth black, and 20 smooth white offspring.
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A compound that prevents the separation of the homologous chromosomes in anaphase I is being studied. Which of the following questions can be best answered during this study based on Figure 5-3?
A) Will the cells produced at the end of meiosis still be genetically identical to each other in the presence of this compound?
B) Will the long-term development of the individual be affected by this meiotic error?
C) When do the centrosomes start to move apart during meiosis I as compared to meiosis II?
D) Is there a pattern to the movement of homologous chromosomes in the presence of this compound?
Is there a pattern to the movement of homologous chromosomes in the presence of this compound? is the correct Answer(Option D)
The information that determines every protein that makes up an organism, including details about when, which cells each protein should be formed in, and how much of each protein should be produced, is carried by genes, which serve as DNA's most crucial role.
We examine how genes are normally organized on each chromosome in this section. Eucaryotes have chromosomes that make up their genomes.
We also explain the specific DNA sequences that enable correct chromosome duplication and transmission from one generation to the next. We also face the significant problem of DNA packing. If the DNA in one human cell were to be stretched end to end, it would measure about 2 meters.
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What is (are) the tunction(g) of the integumentary gystem? A. It provides a physical barrier from infectious micocrganisms B. It keepa wur temperature negulated C. It produces chemicals which kwer plitio fight off harmul basteria D. It alerts us to the presence of harmulul stimuli such es extreme heat and disease-carrying insects E. Al of the above QUESTION 10 Which one of the following mepresents the oarrect spquanee from autrmest to innermost layers of the meningna? A. Ple mater, dure mater, grachuoid mater B. Pia mater, arachnoid mater, dura mater C. Dura mater, pia mater, arachnold mater D.Arachncid mater, dura mater, pis mater E. Dura mater, arachnoid mater, pia mater QUESTION 11 Nearsightechess is more propedy called: A, hyperapia. B. myeple. C. hypopia. D. presbyopla. QUESTION 12 The following list shows the basic unit of each class of argenic compounds. Idently the mismatchectoair. A. Wonceaccharide - Earbohydrales Q. Glycerol and fatty acids - lipids C. Amino acid - proleins D.Al of the above are matches correctly
The integumentary system has several functions, including the protection of the body from infectious microorganisms and harmful bacteria. The Correct option is E
It also regulates the body's temperature and produces chemicals that help fight off harmful bacteria. It alerts us to the presence of harmful stimuli such as extreme heat and disease-carrying insects, making it an essential system in the body.
The correct answer to question 2 is option B. Pia mater, arachnoid mater, dura mater. The meninges are a set of three membranes that surround the brain and spinal cord. These layers are arranged in a specific order, with the pia mater being the innermost layer, followed by the arachnoid mater and the dura mater, which is the outermost layer.
The correct answer to question 3 is option B. Myopia. Nearsightedness is a refractive error that occurs when the eye is too long or the cornea is too steep. It causes distant objects to appear blurry, while near objects appear clear. Myopia is a medical term that is commonly used to describe nearsightedness.
All of the above are matched correctly. Carbohydrates are composed of monosaccharides, lipids are composed of glycerol and fatty acids, and proteins are composed of amino acids. These are the basic units of each class of organic compounds. The Correct option is E
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Algae are plantlike organisms that live in the water. These algae have been in sunlight for several hours now. What can the algae do because they are in sunlight? What does this mean for the number of energy storage molecules in the algae?
The algae can….
Answer:
Algae can perform photosynthesis because they are in sunlight. Photosynthesis is the process by which algae use sunlight, carbon dioxide, and water to produce energy-rich organic molecules such as glucose and oxygen. During photosynthesis, the energy from sunlight is converted into chemical energy stored in the form of energy-rich organic molecules. As a result, the number of energy storage molecules in the algae will increase as long as they continue to receive sufficient sunlight, carbon dioxide, and water. This is because photosynthesis allows the algae to convert the energy from sunlight into chemical energy stored in these molecules, which they can use for growth and metabolism. Therefore, the longer the algae are in sunlight, the more energy-rich molecules they can produce through photosynthesis.
A distribution between 2 sets of genes is called what?
Explanation:
Allele is possibly the answer
4. Compare the two examples of changes in beetle populations. Which of the two scenarios is an example of evolution? Defend your answer with an explanation.
Answer:
The second scenario, "Beetles of a different color", is an example of evolution.
Explanation:
Since evolution is defined as a change in gene frequency overtime, over generations, it is in the second example that we see such a phenomenon taking place. Brown beetles have become more common as opposed to the green beetle population that were the ancestors in this case.
Hope that answers the question, have a great day!
The space in the chest between the lungs is called the Group of answer choices diaphragm. mediastinum. alveolus. sinus cavity. pleural cavity.
Answer: The space in the chest between the lungs is called mediastinum.
Sartre asserts that we can rely only on those things within our power of control and on the sum of possibilities that made our actions possible, there are other people,
however, who have the same freedom, and thus we cannot control them "Can you cite your personal experience, an instance, or a situation that you're into that you don't
have control of your situation?
Answer:
Global is a better source of energy to help for the future but the most likely need for a better deal to help the government with a the market to help build the up for the future and hopefully we can have a better solution for the next few weeks before we
Explanation:
Gdysgs udhdhdvd the on 66666666 will have 3rd of March off and the other one is going to be the first thing I want to say to you and the other one you have in the past and have been working with in the past and have been working with in the past and have been working with in the past and have been working with in the past and have been working with in the past and have been working with in the past and have been working with in the past and have been working with
6 and I have been working g with the other people who worked in various projects and I have been working with in the past and have been working with in the past and have been working with in the past
which of the following are some of the functions of the respiratory system? question 37 options: helps to maintain acid-base balance provides oxygen to body tissues and removes waste such as co2 helps in sensing odors helps in the production of speech all of the above
The respiratory system helps helps to maintaining acid-base balance, provides oxygen to body tissues and removes waste such as co2, helps in sensing odors and the production of speech.
What is respiratory system?The respiratory system is said to be a network of organs and tissues that help us breathe. Includes airways, lungs, and blood vessels. It also include muscles that power the lungs are also part of the respiratory system. These parts work simultaneously to carry oxygen throughout your body and clean exhaust gases. The pulmonary system regulates pH with carbon dioxide. After expiration, carbon dioxide is released into the environment. Carbon dioxide forms carbonic acid in the body when it combines with water, so the amount of exhaled carbon dioxide can raise or lower the pH value.
It allow us to speak and smell.It warms the air to your body temperature and humidifies it to the humidity level your body needs.Delivers oxygen to cells in the body.It removes exhaust gases, during exhalation including carbon dioxide, from the body.To know more about respiratory system, visit:
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What is the cephalic phase? Group of answer choices earliest phase of digestion when the brain prepares the body in anticipation of food phase when the semidigested food leaves the stomach and slowly enters the small intestine phase when the majority of absorption occurs, primarily occurring in the small intestine final phase of digestion when the large intestine and rectum prepare the undigested components of food for elimination
Answer:
earliest phase of digestion in which the brain prepares the body in anticipation of food
Explanation:
The cephalic phase is the phase that occurs in the process of gastric secretion. The phase witnesses its initiation when the thought, smell, taste and sight of the food lingers in the mind before its consumption. The nerves sends the signals of the food from the cerebral cortex of the brain. Before the food is consumed or entered in the body, the cephalic phase takes place.
Normally, how many chromosomes are required to determine the outward expression of a trait?a homologous paironly oneany twotwo pairs
Answer:
A homologous pair
Explanation:
In determining the expression trait of humans, this is based on the homologous chromosomes. This in turn comprised of alleles otherwise known as homologous alleles. The homologous loci are thereby located in these alleles which served as the formation of traits when combined.
Hence, normally, A HOMOLOGOUS PAIR is required to determine the outward expression of a trait?
⦁ Interpret the bottom half of the cross section below. Start with the Vishnu Schist and end with the Red wall Limestone.
⦁ Scoring:
Correct order (8 points):
⦁ Proper environmental changes (8 points):
⦁ Attention to detail and completeness (4 points):
Answer:
Type your answer here.
(Score for Question 2: ___ of 5 points)
⦁ There is one of each type of unconformity in this diagram. Name at least one of each of them by indicating the layers that they are between.
⦁ Nonconformity:
Answer:
Type your answer here.
⦁ Angular unconformity:
Answer:
Type your answer here.
⦁ Disconformity:
Answer:
Type your answer here.
Symbol Name Environment
Sandstone Beach or nearshore environment
Limestone Forms in warm shallow seas
Shale Deep sea
Igneous Rock (Granite) Formed when rocks melt and then recrystalize
Metamorphic Rock (Schist) Formed when rocks are severely deformed without melting; in this cross section, the Vishnu Schist represents the original surface in the area
Igneous intrusion Magma melting and rising from deeper levels
Hint: How can you tell the difference between an intrusion and rocks melting in place? Rocks melting in place usually appear as a large mass, whereas intrusions seem to have risen up from a source.
answer:The vishnu schist is oldest that is 1.7 billion years old and the redwall schist is youngest. Explanation: The Vishnu schist is the uncovered rocks of the grand canyon vicinity they're formed on the basement location that underlines the bottom limestone. Which are accompanied by way of the Zoroaster granite which is an igneous-plutonic rocks intrusion and became later metamorphosed
Explanation:
Does Astigmatism cause blindness? Can Astigmatism be cured?
Answer:
Astigmatism is a problem of how the eye focuses light typically caused by a defect in the lens, resulting in distorted images. Astigmatism is not an eye disease or health problem. While it can cause blurred vision, eye strain, and headaches, particularly after prolonged reading, it does not cause blindness.
Astigmatism can be corrected with glasses, contact lenses, or refractive surgery (i.e. laser eye surgery), although treatment may not be necessary if the symptoms are mild. Glasses and contact lenses both compensate for the irregular shape of the cornea and help to focus light properly into the back of the eye
A model of a bacteria is shown below. Press the hotspot that correctly identifies the location of the cell wall.
Answer:
it is the bright mustard yellow line :)
Explanation:
have a great rest of your day :)
It is the bright mustard yellow line. PGN and pieces of bacterial cell walls play significant roles in the immunological response of higher organisms to bacterial infections.
What is bacteria?For the majority of bacteria, the maintenance of cell shape and structural integrity depends on the intricate, mesh-like structure of the bacterial cell wall.
Due to the cell wall's importance for most bacteria and absence in eukaryotes, it has long been a focus of considerable research, making it a prime candidate for some of our most potent antibiotics Bacterial cell wall fragments can also be immunostimulatory and cytotoxic, which makes them crucial in the etiology and development of disease.
The cell wall must be both hard and flexible in order to support high intracellular pressures, survive external insults, and permit cellular expansion.
Therefore, It is the bright mustard yellow line. PGN and pieces of bacterial cell walls play significant roles in the immunological response of higher organisms to bacterial infections.
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multiple choice question the rise in blood lactate that occurs during incremental exercise may be the cause of the alinear rise in the ventilatory threshold, because the carotid bodies that increase the threshold can be stimulated by a(n) blank .
The carotid bodies that rise to the end can be elicited by an increase in hydrogen ion levels.
Acute NaCl overload, according to the findings, activates carotid bodies, but not mannitol. We conclude that during acute NaCl overload, the carotid bodies contribute to increased sympathetic activity.
The primary peripheral chemoreceptors are the carotid bodies, which are triggered by hypoperfusion, low oxygen partial pressure, high carbon dioxide partial pressure, blood acidity, and oxygen partial pressure.
In conscious humans, we demonstrated that the injection of adenosine selectively stimulates the carotid body, resulting in a dose-dependent increase in minute ventilation and blood pressure while simultaneously lowering heart rate.
In a nutshell, reflex bradycardia and systemic vasodilatation will result from the stimulation of stretch receptors by an increase in carotid sinus blood pressure. During changes in posture, the baroreceptor reflex is also essential for maintaining heart rate and blood pressure.
According to these findings, hypoxic stimulation of the carotid bodies results in a dichotomous sympathetic response, which means that sympathetic discharge to the heart decreases while sympathetic discharge to the peripheral vasculature increases simultaneously.
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