HUMAN PHYSIOLOGY
BREATHING AND RESPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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During forced breathing
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During speech and singing
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During sneezing and coughing
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All 3 options are correct
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Detailed explanation-1: -The nervous system Your breathing usually does not require any thought, because it is controlled by the autonomic nervous system, also called the involuntary nervous system. The parasympathetic system slows your breathing rate.
Detailed explanation-2: -Voluntary Control Voluntary respiration is under conscious control. It is controlled via the motor cortex in the cerebrum, which receives inputs from the limbic system and hypothalamus.
Detailed explanation-3: -Breathing is usually automatic, controlled subconsciously by the respiratory center at the base of the brain. Breathing continues during sleep and usually even when a person is unconscious. People can also control their breathing when they wish, for example during speech, singing, or voluntary breath holding.
Detailed explanation-4: -Voluntary control arises from the motor and premotor cortex and descends in the cord in the corticospinal tract. Involuntary control is mediated by both rhythmic and nonrhythmic systems located in the brainstem. Recent studies have associated the classic respiratory centers with specific nuclei in the brainstem.