psych exam 1 - Chapter 2 11) Brain structures and their...

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Chapter 2 11) Brain structures and their functions Brainstem- the oldest part and central core of the brain, beginning where the spinal cord swells as it enters the skull (is an extension of the spinal cord); the brainstem is responsible for automatic survival functions. Is also the crossover point, where most nerves to and from each side of the brain connect with the body’s opposite side. Medulla- the base of the brainstem; controls heartbeat and breathing. Pons- part of the brainstem and is just above the medulla. It helps coordinate movements. Reticular formation- inside the brainstem, between your ears. Is a finger-shaped network of neurons (nerves) that extends from the spinal cord right up to the thalamus. Plays an important role in controlling arousal. Thalamus- the brain’s sensory switchboard, located on top of the brainstem (egg-shaped); it directs messages to the sensory receiving areas in the cortex and transmits replies to the cerebellum and medulla. Cerebellum- the “little brain” attached to the rear of the brainstem; its functions include processing sensory input and coordinating movement output and balance. Limbic System- a dough-nut shaped system of neural structures at the border of the
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This note was uploaded on 04/02/2008 for the course PSY 101 taught by Professor Jackson during the Fall '08 term at Michigan State University.

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psych exam 1 - Chapter 2 11) Brain structures and their...

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