My College Class Notes

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The Brain’s Functions I: Experiencing the World

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What brain structures process incoming sensory stimulation?

The specialized area of the cerebral cortex responsible for analyzing and interpreting messages from the sense organs is referred to as the somatosensory cortex.

The thalamus is a relay and processing center for incoming sensory messages and outgoing bodily commands.

The reticular activation system (RAS) is another sensory processing center; it helps keep the upper parts of the brain in an appropriate state of arousal, attention, and activity

 

What brain structures initiate and coordinate body movements?

The specialized strip on the cerebral cortex that controls body movements and speech is the motor cortex.

The cerebellum controls body balance and coordination of complex muscular movements; its two lobes are connected by the pons.

 

 

The Brain’s Functions I: Experiencing the World: Definitions

Somatosensory complex

The specialized area of the cerebral cortex responsible for analyzing and interpreting messages from the sense organ.

Thalamus

The brain’s relay station for messages to and from the body. 

Reticular activating system (RAS)

A network of neural cells in the brain stem that serves as a way station for messages from the sense organs.

Motor cortex

The specialized strip on the cerebral cortex that controls body movement. 

Cerebellum

A brain structure involved in controlling balance and movement. 

Pons

The brain structure connecting the two hemispheres of the cerebellum.

 

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Written by Joseph Eulo

May 28, 2008 at 1:50 pm

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