Question 7 All of the following provide chemoreceptor input to the medullary respiratory centers except the a. medullary chemoreceptors b. carotid body c. olfactory epithelium d. aortic body
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Step 1: Chemoreceptors are sensory receptors that detect changes in the chemical composition of their surroundings. Show more…
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If the pH, PO2, and PCO2 of arterial blood do not change during the light to moderate phase of the progressive test, what are the signals to the respiration center that drive breathing in proportion to the workload? A) stretch receptors located in the lungs B) neural input from higher brain centers C) feedback from chemoreceptors located in the carotid bodies D) feedback from chemoreceptors located in the aortic bodies
Supreeta N.
Complete the following sentence by selecting option. The breathing rhythm is generated in the influenced by variation in levels of (ii) in the thod; (i) (ii) (a) medulla $\mathrm{CO}_{2}$ $\begin{array}{ll}\text { (b) medulla } & \mathrm{O}_{2}\end{array}$ (c) frontal lobe $\mathrm{CO}_{2}$ and $\mathrm{O}_{2}$ (d) frontal lobe $\mathrm{CO}_{3}$
What is the primary feedback used by the brain to control breathing? a. heart rate b. partial pressure of $\mathbf{O}_{2}$ c. blood $\mathrm{pH},$ which indicates $\mathrm{O}_{2}$ level d. blood $\mathrm{pH},$ which indicates $\mathrm{CO}_{2}$ level
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