white matter and brain stem

Question 1

what is white matter made of

Answer 1

meyelinated axons

Question 2

what are basal nuclei

Answer 2

grey matter “islands” found in white matter

Question 3

what is cerebral white matter responsibe for

Answer 3

communication between cerebral areas, and between cortex and lower centeral nervous system

Question 4

what is a nuclei

Answer 4

cluster of somas in centeral nervous system

Question 5

what is a nuclei

Answer 5

cluster of somas in centeral nervous system

Question 6

what is a tract

Answer 6

a cluster of axons in the centeral nervous system

Question 7

what is a gangligon

Answer 7

a cluster of somas in the peripheral nervous system

Question 8

what is a nerve

Answer 8

a cluster of axons in the peripheral nervous system

Question 9

what are association fibers

Answer 9

horizontal fibers that connect different parts of same hemisphere

Question 10

what are commissural fibers

Answer 10

horizontal fibers that connect grey matter to two hemispheres

Question 11

what is the corpus callosum

Answer 11

what the commissural hemispheres cross to get to the other hemisphere

Question 12

what are projection fibers

Answer 12

verticle fibers that connect hemispheres with the lower brain/ spinal cord

Question 13

what 3 things does the basal nuclei include

Answer 13

1. caudate nucleus
2. putamen
3. globus pallidus

Question 14

what are the main functions of basal nuclei

Answer 14

controling movement; inhibiting unnecessary movement (arm swinging)

Question 15

what are 2 disorders one may have if their basal nuclei is damaged

Answer 15

1. parkinsons disease
2. hemiballismus

Question 16

what are the 3 grey matter structures of the diencephalon

Answer 16

1. thalamus
2. hyopthalamus
3. emithalamus

Question 17

what is the main function of the thalamus

Answer 17

to sort, edit, and relay information comng into the cortex

Question 18

what is the hyopthalamus

Answer 18

the main visceral control and regulating center that is vital to homeostasis

Question 19

what other 5 things does the hypothalamus regulate and control

Answer 19

1. body temp (sweating/shivering)
2. hunger and satiety
3. water balance and thirst
4. sleep-wake cycles
5. endocrine system functions

Question 20

what gland is found in the epithalamus

Answer 20

pineal gland