shorter Neuro lab final secondary Q's Flashcards Preview

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Flashcards in shorter Neuro lab final secondary Q's Deck (62):
1

area that surrounds the cerebral aqueduct that receives nociceptive info

periaqueductal grey

2

region that receives nociceptive info and projects to the serotonergic raphe nuclei--> part of a major pain-inhibiting pathway in the SC

periaqueductal grey

3

periaqueductal grey is a part of the _____ pathway in the SC

pain inhibiting pathway

4

tract that connects the vestibular nuclei with CN III, IV, and VI (occulomotor, troch, abducens)

Medial Longitudinal Fasciculus

5

tract that regulates vestibulo-occular reflexes and coordinations

medial longitudinal fasciculus

6

Descending fibers of voluntary motor control from the cortex and projecting to spinal cord (corticospinal and corticobulbar tracts). At the level of the midbrain, cortical input is ispilateral.

crus cerebri

7

crus cerebri has descending fibers of voluntary _____ control from the cortex and project to the SC

motor

8

crus cerebri contains what two tracts

corticospinal
corticobulbar

9

Sends descending fibers down to the rostral spinal cord via the rubrospinal tract

Red Nucleus

10

2 portions of the substantia nigra

pars compact (dop)
pars reticulata (visual tracking)

11

neuronal loss in the ____ = Parkinsons

pars compacta

12

Parasympathetic, preganglionic nucleus of CN III.

nucleus of edinger westphal

13

EWN regulates pupillary light respinse through projections to the ____

ciliary gg (post gg that innervate the sphincter pupillae)

14

responsible for the accomidation reflex

nucleus of edinger westphal

15

Lower motor neuron nucleus of CN III.

oculomotor Nucleus

16

Part of the midbrain tectum (roof) that is involved in eye tracking and saccades.

superior colliculus

17

Part of basal ganglia circuit involving substantia nigra pars reticulata. Receives afferent input from frontal eye fields and visual association cortices and sends motor output to occulmotor nuclei and to the head and neck via the tectospinal tract.

superior colliculus

18

superior colliculus sends efferent info to the occulomotor nuclei, head and neck via the ____ tract

tectspinal tract

19

ventral portion of the pons

basis pontis

20

basis pontis carries the fibers of (4) nuclei

cortico-ponto-cerebelllar
corticospinal
corticobulbar
pontine nuclei

21

Space in ventral hindbrain containing CSF to cushion brain and provide nutrients. Contains choroid plexus.

IV ventricle

22

Dorsal portion of the pons

pontine tegmentum

23

comprises the floor of the floor of the IV ventricle

pontine tegmentum

24

cortico input travels ipsi to the pontine nucleus and then travels through the _____ to enter the cerebellum

middle cerebellar peduncle

(coordinated movement info)

25

What type of information is passed through the middle peduncle

coordinated movement info

26

Most cerebellar efferent’s exit the cerebellum through this tract.

superior cerebellar peduncle

27

____ tract enters the cerebellum through the superior peduncle

ventral spinocerebellar tract

28

Major CNS center of norepinephrine production

locus ceruleus

29

where is the locus ceruleus located

pons

30

locus ceruleus is a part of the ascending reticular activating system that causes ___ & ___

arousal and alertness

31

Most unconscious proprioceptive input enters the cerebellum through

inferior cerebellar peduncle

32

(6 ) tracts that enter the cerebellum through the inferior peduncle

cuneocerebellar
dorsal spinocerebellar
rostral spinocerebellar
vestibulocerebellar
olivocerebellar
trigeminal cerebellar

33

inferior peduncle contains the cerebellar EFFERENT axons to the ____

vestibular nuclei
(only efferent going through the inf. --- all other tracts are entering through the inf. into the cerebellum)

34

preganglionic, parasympathetic motor nucleus of CN X

dorsal motor nucleus of X

35

dorsal motor nucleus of X innervates what structures (4)

lungs
heart
stomach
GI tract

36

Brainstem lower motor neuron pool containing axons that innervate muscles of the larynx and pharynx. Part of CN IX, X, XI

nucleus ambiguus

37

location of the inferior olivary nucleus

medulla

38

nucleus in the medulla that sends contralateral projections to the cerebellum via the olivocerebellar tract.

inferior olivary nucleus

39

inferior olivary nucleus sends contralateral projections to the cerebellum via ___ tract

olivoverebellar tract

40

fibers of the inferior oivary nucleus terminates as ___ fibers on purkinje cells

climbing fibers on purkinje cells

41

___ nucleus of the medulla is Involved in learning unconscious motor tasks .

inferior olivary nucleus

42

First synapse of afferent vestibular info from Scarpa’s ganglia

vestibular nuclei

43

collection of primary sensory afferent cell bodies from the inner ear

vestibular nuclei

44

vestibular nuclei projects to the cerebellum via the ___ pathway

vestibulocerebellar pathway

45

vestibular nuclei projects to the oculomotor Ms via the ____

MLF

46

vestibular nuclei sends projections dwn the SC to the trunk and extensor M via the ____ tract

vestibulospinal tract

47

First synapse for temp., pain and light touch of the face.

spinal trigeminal Nucleus

48

Receives fibers from CN V, VII, IX and X in relation to somatosensory input from the ear.

spinal trigeminal nucleus

49

spinal trigeminal nucleus is a part of which tract

trigeminothalamic tract

50

_____ nucleus is involved with trigeminal neuralgia

spinal trigeminal nucleus

51

2nd order sensory fibers carrying fine touch/vibrotactile and conscious proprioceptive info to the VPL of the thalamus from the posterior/dorsal columns.

internal arcuate decussation

52

internal arcuate decussation carries info from the dorsal columns to the ____

thalamus

53

Ascending temp, pain and light touch pathway. Contralateral info at level of medulla

spinothalamics (ant and lateral)

54

spinothalamics (ant. and lateral) has its input through the ____ and project to the thalamus

lissauers fasciulus

55

Ascending, 2nd order sensory fibers carrying fine touch/vibrotactile and conscious proprioceptive from the posterior/dorsal columns.

Medial Lemniscus

56

medial lemniscus carris infor to the ____ of the thalamus

VPL

57

Responsible for “integrative” functions, including motor control, autonomic output, and regulation of behavioral state

reticular formation (at all levels of the brainstem)

58

Rostral portion receives afferent gustatory (taste) input. Major cranial nerves with axons that synapse here: VII, IX, X

nucleus of the solitary tract

59

First synapse for unconscious proprioceptive info for upper half of body.

accessory cuneate

60

accessory cuneate sends afferent info throug the ___ tract

cuneocerebellar tract

61

First synapse for fine touch/vibrotactile and conscious proprioceptive info for upper extremeties.

nucleus cuneatus

62

efferent fibers from the nucleus cuneatus and gracilis are sent through the ___

medial emniscus