the central chemoreceptors that control respiration that control respiration are sensitive to which of the following...
Homework Answers
ANSWER.
e) The central chemoreceptors situated in the brain stem control respiration by
sensitive to changes in Concentration of H+ ions in the cerebrospinal fluid.
* Decrease pH in the CSF may due to high CO2 level in the body stimulate
central chemoreceptors and they regulate the change in CO2 level.
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the
central chemoreceptors that control respiration that control
respiration are sensitive to which of the following...
Human being breaths in order to provide the means for gas exchange for the entire body. A respira...
Human being breaths in order to provide the means for gas exchange for the entire body. A respiratory control system is needed to ensure that the body's needs for this gas exchange are adequately met. The criterion of control is adequate ventilation, which ensures satisfactory levels of both ca controlled by neural impulses that originate within the lower brain and are transmitted to the chest cavity and diaphragm to govem the rate and tidal volume. One source of the signals...
Henry’s law states that the solubility of a gas is directly proportional to the partial pressure...
Henry’s law states that the solubility of a gas is directly proportional to the partial pressure of the gas if the temperature is constant. Hyperbaric chambers, which provide high pressures (up to 6 atm) of either air or pure oxygen, are used to treat a variety of conditions, ranging from decompression sickness in deep-sea divers to carbon monoxide poisoning. Look up the Henry’s Law Constant (kH) for N2, O2, and CO2 in the textbook. a) Calculate the solubility (concentration in...
11. Chemoreceptors and 02 levels are what control our drive to breathe when CO2 levels are...
11. Chemoreceptors and 02 levels are what control our drive to breathe when CO2 levels are chronically elevated Peripheral e. Central f. Type h. Type II 12. (Type of cell) destroy antigens Compliance a. b. Helper T-cells C Central C. d. Cytotoxic T-cells 13. Central - chemoreceptors are located in carotid and aortic bodies <span class-gD C True False is the ease with which the lung can be inflated 14. Lung compliance C False True is the ease with which...
RESPIRATION 2 1. Which are the factors that affect diffusion of gases across the alveolar membrane? 2. Describe diff...
RESPIRATION 2 1. Which are the factors that affect diffusion of gases across the alveolar membrane? 2. Describe different respiratory units in terms of ventilation/perfusion ratio. 3. How are Oxygen and CO2 transported in blood? 4. What is physiological dead space? Know the formula for calculation alveolar ventilation rate. 5. Describe location of chemoreceptors. Which stimuli affect their activity? 6. Describe all lung receptors. What are the effects of sympathetic and parasympathetic nervous system on respiration? OBSTRUCTIVE & RESTRICTIVE DISEASES...
Which of the following is TRUE concerning gas diffusion in air versus water? a. The CO2...
Which of the following is TRUE concerning gas diffusion in air versus water? a. The CO2 absorption coefficient is less than for O2 b. Diffusion rate is negatively impacted by a longer distance the gas travels in air c. Diffusion rate depends on the number and relative concentration of gases present d. None of the above
Name 13. During gas exchange in the lungs, several factors affect the rate of gas diffusion acros...
Name 13. During gas exchange in the lungs, several factors affect the rate of gas diffusion across alveolar (the alveoli are tiny air sacs in the lungs) and tissue membranes. One of the factors is the difference in partial pressures of the gases across the membranes. The gases will diffuse from an area of high partial pressure to an area of low partial pressure, Look at the illustration below and note which blood vessels carry blood away from the lungs...
Q11) It is crucial that the human body control the concentration of H ions for any...
Q11) It is crucial that the human body control the concentration of H ions for any significant change can lead to sickness or death. Breathing controls the amount of CO2 in the lungs which can ultimately impact the bodies H' concentration. 3 (ag) a) If the breathing rate is slowed down, the concentration of CO2 in the lungs increases. Use LeChatelier's principle and discuss how holding your breath can impact the H concentration. (This is called "respiratory acidosis") What would...
7. Ependymal cells A. are sometimes called neurolemmocytes B. form sheaths around parasympathetic nervous tissue cells...
7. Ependymal cells A. are sometimes called neurolemmocytes B. form sheaths around parasympathetic nervous tissue cells C. are phagocytes D. form sheaths around central nervous system cells E. line the cavities of the brain and spinal cord Which of the following events will lead to depolarization? A. an increase in K+ ions in the extracellular fluid B. a decrease in K+ lions in the extracellular fluid C. an increase in the rate of diffusion of K+ ions from cells D....
Which of the following stimulates the central chemoreceptors more quickly and elicits the most rapid increase...
Which of the following stimulates the central chemoreceptors more quickly and elicits the most rapid increase in ventilation: elevated blood PCO2 or elevated blooqwedscd [H+]? Explain. The most twential to flunsm noch .hals to Hue modulla to me 1. Describe the difference between Myasthenia Gravis and Guillain Barre syndromes, and how each of these disorders affects the body. Guillian Barre syndrome affects neuromuscular function whereby anatomically altering lung ventilatory function leading to mucous accumulation, airway obstruction, alveolar consolidation and actelectasis....
21. What are the characteristics of the carbonic acid-bicarbonate buffer system (select all that apply? a...
21. What are the characteristics of the carbonic acid-bicarbonate buffer system (select all that apply? a CO2 is eliminated by the lungs b. Neutralizes HCl acid to yield carbonic acid and salt c. H2CO3 formed by neutralization dissociates into H2O and CO2 d. Shifts H+ in and out of cell in exchange for other cations such as potassium and sodium e. Free basic radicals dissociate into ammonia and OH-, which combines with Ho to form water 22. What are characteristics...
Human being breaths in order to provide the means for gas exchange for the entire body. A respiratory control system is needed to ensure that the body's needs for this gas exchange are adequately met. The criterion of control is adequate ventilation, which ensures satisfactory levels of both ca controlled by neural impulses that originate within the lower brain and are transmitted to the chest cavity and diaphragm to govem the rate and tidal volume. One source of the signals...
11. Chemoreceptors and 02 levels are what control our drive to breathe when CO2 levels are chronically elevated Peripheral e. Central f. Type h. Type II 12. (Type of cell) destroy antigens Compliance a. b. Helper T-cells C Central C. d. Cytotoxic T-cells 13. Central - chemoreceptors are located in carotid and aortic bodies <span class-gD C True False is the ease with which the lung can be inflated 14. Lung compliance C False True is the ease with which...
RESPIRATION 2 1. Which are the factors that affect diffusion of gases across the alveolar membrane? 2. Describe different respiratory units in terms of ventilation/perfusion ratio. 3. How are Oxygen and CO2 transported in blood? 4. What is physiological dead space? Know the formula for calculation alveolar ventilation rate. 5. Describe location of chemoreceptors. Which stimuli affect their activity? 6. Describe all lung receptors. What are the effects of sympathetic and parasympathetic nervous system on respiration? OBSTRUCTIVE & RESTRICTIVE DISEASES...
Which of the following is TRUE concerning gas diffusion in air versus water? a. The CO2 absorption coefficient is less than for O2 b. Diffusion rate is negatively impacted by a longer distance the gas travels in air c. Diffusion rate depends on the number and relative concentration of gases present d. None of the above
Name 13. During gas exchange in the lungs, several factors affect the rate of gas diffusion across alveolar (the alveoli are tiny air sacs in the lungs) and tissue membranes. One of the factors is the difference in partial pressures of the gases across the membranes. The gases will diffuse from an area of high partial pressure to an area of low partial pressure, Look at the illustration below and note which blood vessels carry blood away from the lungs...
Q11) It is crucial that the human body control the concentration of H ions for any significant change can lead to sickness or death. Breathing controls the amount of CO2 in the lungs which can ultimately impact the bodies H' concentration. 3 (ag) a) If the breathing rate is slowed down, the concentration of CO2 in the lungs increases. Use LeChatelier's principle and discuss how holding your breath can impact the H concentration. (This is called "respiratory acidosis") What would...
7. Ependymal cells A. are sometimes called neurolemmocytes B. form sheaths around parasympathetic nervous tissue cells C. are phagocytes D. form sheaths around central nervous system cells E. line the cavities of the brain and spinal cord Which of the following events will lead to depolarization? A. an increase in K+ ions in the extracellular fluid B. a decrease in K+ lions in the extracellular fluid C. an increase in the rate of diffusion of K+ ions from cells D....
Which of the following stimulates the central chemoreceptors more quickly and elicits the most rapid increase in ventilation: elevated blood PCO2 or elevated blooqwedscd [H+]? Explain. The most twential to flunsm noch .hals to Hue modulla to me 1. Describe the difference between Myasthenia Gravis and Guillain Barre syndromes, and how each of these disorders affects the body. Guillian Barre syndrome affects neuromuscular function whereby anatomically altering lung ventilatory function leading to mucous accumulation, airway obstruction, alveolar consolidation and actelectasis....
21. What are the characteristics of the carbonic acid-bicarbonate buffer system (select all that apply? a CO2 is eliminated by the lungs b. Neutralizes HCl acid to yield carbonic acid and salt c. H2CO3 formed by neutralization dissociates into H2O and CO2 d. Shifts H+ in and out of cell in exchange for other cations such as potassium and sodium e. Free basic radicals dissociate into ammonia and OH-, which combines with Ho to form water 22. What are characteristics...
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