THE CENTRAL NERVOUS SYSTEM (AFTER MD 2)

Question 1

What are the roles of the Central Nervous System?

Answer 1

Planning/monitoring movement, maintenance of homeostasis, higher mental function.

Question 2

What two things have gray and white matter?

Answer 2

The brain and spinal cord

Question 3

What is white matter

Answer 3

Myelinated axons

Question 4

What is gray matter

Answer 4

neuron cell bodies, dendrites, and unmyelinated axons

Question 5

what are the ventricles of the brain and central canal of the spinal cord filled with?

Answer 5

cerebrospinal fluid

Question 6

What are the 4 divisions of the brain?

Answer 6

cerebrum, diencephalon, cerebellum, brainstem

Question 7

what are the functions of the cerebrum?

Answer 7

Performs higher mental functions, plans and initiates movement

Question 8

what are the functions of the deincephalon?

Answer 8

Processes, relays information, maintains homeostasis

Question 9

Function of cerebllum

Answer 9

monitors and coordinates movement

Question 10

function of brainstem

Answer 10

maintains homeostasis, controls certain relfexes

Question 11

3 structures of the cerbrum

Answer 11

cerebral cortex, basal nuclei, limbic system

Question 12

What does the longitudinal fissure do?

Answer 12

seperates the left and right hemisphere of the cerebrum

Question 13

Each hemisphere has _ main lobes

Answer 13

4

Question 14

What are the 4 main lobes

Answer 14

Frontal, parietal, occipital, temporal

Question 15

What does the frontal lobe do?

Answer 15

planning/ executing movement/ complex mental functions

Question 16

what does the parietal lobe do?

Answer 16

processing/ integrating sensory info

Question 17

What does the temporal lobe do?

Answer 17

hearing, language, memory, emotions

Question 18

What does the occiptal lobe do

Answer 18

vision