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Flashcards in week 5 lab Deck (25)
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1
Q

caudal commissure

A

where cross over of pretectal neurons for PLR occur (left to right)

2
Q

tectum composed of

A

rostral colliculus and caudal colliculus

3
Q

rostral colliculus

A

lateral geniculate nucleus feed into rostral colliculus and riggers UMN for neck muscles for sight avoidance

4
Q

caudal colliculus

A

sound avoidance

5
Q

tegmentum

A

ventral portion; LMNs of CNN III and IV; UMN centers (3)

6
Q

crus cerebri

A

axons of neurons from the frontal lobe (the umn that lives in the frontal lobe)

7
Q

mesencephalic aqueduct divides midrbain into

A

dorsal poriton and ventral portion;

8
Q

dorsal portion is the

A

tectum

9
Q

ventral portion is the

A

tegmentum

10
Q

tegmentum contains

A

LMN of CN 5 and UMN center

11
Q

rostral medullary velum

A

thin membrane forming roof of 4th ventricle; decussation of CN IV in rsotral medullary velum

12
Q

obex is important in

A

prion disease

13
Q

peduncles on ventral surface of cerebellum

A

axons going into and out of cerebellum (middle caudal rostral; named on where they tie into the brainstem)

14
Q

transverse pontine fibers become

A

middle cerebellar peduncles

15
Q

vestibular trigone

A

vestibular n. information feeds in here (info from semicircular canals)

16
Q

vestibular nuclei live in

A

vestibular trigone

17
Q

what are the functions of vestibular nuclei

A

send axons down white matter of cord an talk to LMN (so it is an umn)
travel rostrally to talk to LMN of CN 3,4,6: fast phase clicking in direction of head turn (niastagmus)

18
Q

hearing from CN 8 travel into

A

cochlear nucleus

19
Q

lateral geniculate body _____

A

conscious vision relay

20
Q

medial geniculat body _____

A

conscious auditory relay

21
Q

brachium of rostral colliculus

A

connects rostral colliculus and lateral geniculat

22
Q

brachium of the caudal colliculus

A

connects caudal colliculus and medial geniculate

23
Q

what are the basal nuclei

A
caudate nucleus (head an dbody)
lenticular nucleas (lentiform nucleus)
24
Q

what is the fornix composed of

A

axons of hippocampus and parahippocampus

25
Q

basal nuclei function in

A

inhibitory to frontal cortex; fine motor ability control repsiration in primates (parkinsons disease)