L4 NS intro

Question 1

the NS can be broken down in which parts?

Answer 1

CNS: brain, spinal cord, and retina
PNS: somatic and autonomic

Question 2

PNS broken down to?

Answer 2

-somatic: motor and touch nerves (come from spinal cord and brain)
-autonomic: sympathetic (thoracic) and parasympathetic (cranial and sacral)

autonomic NS parts oppose each other, one side slows heart (para) and one accels (symp)

Question 3

horizontal plane of section

Answer 3

helicopter cut

Question 4

coronal plane of section

Answer 4

guillotine cut

Question 5

saggital plane of section

Answer 5

down the midline

Question 6

what is a sulcus?

Answer 6

dividing lines in brain

Question 7

what do the brainstem, medulla, pons, and midbrain do?

Answer 7

controls bodily functions and basic processes (respiration, heartbeat, sensation, etc.)

Question 8

rostral?

Answer 8

closer to nose

Question 9

caudal?

Answer 9

closer to “tail”

Question 10

ipsilateral

Answer 10

same side of midline

Question 11

contralateral

Answer 11

opposite side of midline

Question 12

what did penfield do?

Answer 12

electrical stimulation while awake to tell experience

Question 13

brains protective outer layers?

Answer 13

meninges and blood-brain barrier

Question 14

what do capillaries do to keep out stuff?

Answer 14

have tight junctions so blood serum can’t easily pass to brain cells