cerebellar function HY

Question 1

definition of superior colliculus

Answer 1

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

Question 2

periaqueductal gray matter

Answer 2

function in the processing of autonomic movements and limbic activities, as well as modulation of nociception

Question 3

aqueduct

Answer 3

passageway connecting the third and fourth ventricles

Question 4

nucleus of eidneger-westphal

Answer 4

parasympathetic innervation of the eye to constrict the iris and to the ciliary muscle to alter lens shape after accomodation

Question 5

cranial nerve II nuclei and nerve

Answer 5

motor control of eye muscles

Question 6

spinothalamic tract

Answer 6

fiber pathway to thalamus for pain/temp from the periphery

Question 7

meidal lemniscus

Answer 7

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

Question 8

medial geniculate

Answer 8

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

Question 9

lateral geniculate

Answer 9

thalamic relay nuclei for auditory information

Question 10

cerebral penducle

Answer 10

fiber bundles of the corticospinal tract connecting the cerebral cortex to the brainstem

Question 11

optic tract

Answer 11

optic fibers from optic chiasm to the lateral geniculate

Question 12

substantia nigra

Answer 12

one of several nuclei involved in smooth motor control; degenerates in Parkinson’s diseae

Question 13

red nucleus

Answer 13

relay nuclei between the cerebellum to the thalamus

Question 14

medial longitutdinal fasciculus

Answer 14

fiber pathway btw the vestibular nuclei and the CN nuclei 3, 4, 6 to coordinate head/eye movement

Question 15

superior cerebellar peduncle

Answer 15

fiber pathway to and from the cerebellum

Question 16

middle cerebellar peduncle

Answer 16

fiber pathway to and from the cerebellum

Question 17

mesencephalic, main snsory nucleus, motor nucleus of V

Answer 17

three nuclear components of the trigeminal nerve nuclei

Question 18

CN5

Answer 18

mtor and sensory fibers of CN 5

Question 19

pontine nuclei

Answer 19

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

Question 20

locus cerlueus

Answer 20

a noradrenegric brainstem nucleus involved in mood, sleep/wake cycle

Question 21

raphe nucleus points

Answer 21

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

Question 22

corticospinal tract

Answer 22

motor fibers from neocortex to spinal interneurons and lower motor neurons

Question 23

nuclei of the vestibular system that regulate balance

Answer 23

inferior and medial vestibular nuclei

Question 24

nucleus and tractus solitarius

Answer 24

sensory nuclei for taste (from CN VII) glands, chemo/baroreceptors (CNs IX, X)

Question 25

drosal motor nculeus vagus (CNX)

Answer 25

parasymapthetic motor nucleus to lungs and gut

Question 26

spinal nucleus and tract of CN V

Answer 26

nuclear andtract components of CN V that exten into the upper cervical cord

Question 27

inferior olivary nculeus

Answer 27

origin of the climibing fibers to the cerebellar purkinje cells

Question 28

pyramid

Answer 28

name give to the corticospinal tract fibers in the medulla

Question 29

reticular formation

Answer 29

a network of neurons and axons that reside in the brain stem tegmentum involved in arousal, respiration, heart rate control

Question 30

nucleus CN IX

Answer 30

glossopharyngeal nucleus with motor control over tongue and pharyngeal muscle with taste from posterior 1/3 of tongue