Final answer:
In brain death, all brainstem reflexes are absent, including pupillary, gag, cough, and withdrawal reflexes, as well as the absence of spontaneous respiration
Step-by-step explanation:
In cases of brain death, certain reflexes that are typically controlled by the brain are absent. These include the pupillary light reflex, which is the constriction of the pupils when exposed to light; the gag reflex, which involves the contraction of the muscles in the back of the throat when stimulated; and the corneal reflex, where the eye blinks in response to touch or irritants on the cornea.
In brain death, all brainstem reflexes are absent, including pupillary, gag, cough, and withdrawal reflexes, as well as the absence of spontaneous respiration