Which of the following components of a person's biologic control system are responsible for controlling spontaneous ventilation? I. cerebellum II. chemoreceptors III. cerebral cortex IV. respiratory muscles
A. I, III only
B. I, II, IV only
C. II, III, IV only
D. I, II, III, IV
?ANS: C
A. Incorrect response: See explanation C.
B. Incorrect response: See explanation C.
C. Correct response: A person's biologic respiratory control system is responsible for control of spontaneous ventilation and is composed of four components: (1) central controller, (2) connecting nerves, (3) ventilatory pump (respiratory muscles), and (4) sensors (e.g., chemoreceptors and mechanoreceptors).
D. Incorrect response: See explanation C.
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