cross section functions

Question 1

Superior colliculus

Answer 1

reflex movements that orient eyes, head, and neck in response to visual, auditory, and somatic stimuli

Question 2

periaqueductal gray matter

Answer 2

processing of autonomic and limbic activities as well as modulation of nociception

Question 3

aqueduct

Answer 3

connects 3rd and 4th ventricle

Question 4

nucleus of edinger-westphal nucleus

Answer 4

parasymp innervation of eye to constrict the iris and ciliary muscle to alter lense shape for accommodation

Question 5

spinothalamic tract

Answer 5

fiber pathway to thalamus for pain/temp from periphery

Question 6

medial lemniscus

Answer 6

sensory pathway for proprioception connecting the nucleus gracilis and cutaneatus with the thalamus

Question 7

medial geniculate

Answer 7

thalamic relay nuclei for auditory information

Question 8

lateral geniculate

Answer 8

thalamic relay nuclei for visual information

Question 9

cerebral peduncle

Answer 9

fiber bundles of corticospinal tract connecting cerebral cortex to brainstem

Question 10

optic tract

Answer 10

fibers from optic chiasm to lateral geniculate

Question 11

red nucleus

Answer 11

relay nuclei between cerebellum to thalamus

Question 12

medial longictudinal fasiculus

Answer 12

pathway between vestibular nuclei and CN nuclei III, IV, VI to coordinate head/eye movements

Question 13

pontine nuclei

Answer 13

collection of neurons in the pons that receive input from the neocortex and send crossing fibers through the middle cerebellar peduncle

Question 14

locus coeruleus

Answer 14

a noradrenergic brainstem nucleus involved in mood, slee/wake cycle

Question 15

raphe nucleus pontis

Answer 15

one of several serotonin type nuclei involved in mood, sleep/wake cycle

Question 16

corticospinal tract

Answer 16

motor fibers from neocortex to spinal interneurons and lower motor neurons

Question 17

inferior and medial vestibular nuclei

Answer 17

nuclei of vestibular system that regulate balance

Question 18

nucleus and tractus solitarius

Answer 18

sensory nucleus for taste, glands, chemo/baroreceptors

Question 19

dorsal motar nucleus vagus

Answer 19

parasymp motor nucleus to lungs and gut

Question 20

inferior olivary nucleus

Answer 20

origin of climbing fibers to the cerebellar purkinje cells

Question 21

pyramid

Answer 21

corticospinal tract fibers in medulla

Question 22

reticular formation

Answer 22

involved in arousal, respiration, heart rate control