AP PSYCHOLOGY

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BIOLOGICAL BASES OF BEHAVIOR

THE NERVOUS AND ENDOCRINE SYSTEMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When it is hot outside, your blood vessels expand to release heat and maintain homeostasis. This is an involuntary action! Involuntary actions are controlled by the ____
A
Cerebrum
B
Cerebellum
C
Brain stem / medulla
D
None of the above
Explanation: 

Detailed explanation-1: -The brain stem is in charge of all the functions your body needs to stay alive, like breathing air, digesting food, and circulating blood. Part of the brain stem’s job is to control your involuntary muscles-the ones that work automatically, without you even thinking about it.

Detailed explanation-2: -The medulla oblongata is the rod-shaped part of the brain which is seen below the cerebrum, located near the cerebellum of the brain. It controls involuntary actions like heartbeat and breathing.

Detailed explanation-3: -The medulla controls the involuntary actions whereas forebrain is responsible for controlling the voluntary actions in the body.

Detailed explanation-4: -The medulla controls various involuntary actions such as heartbeat, breathing, blood pressure and peristaltic movement in the body.

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