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Neuroscience Quiz 1 > Spencer's gross neuroanatomy structures > Flashcards

Spencer's gross neuroanatomy structures Flashcards

1
Q

structure

A

anatomy/function

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2
Q

dorsolateral/ventrolateral sulci

A

point of entry of dorsal roots; exit of ventral roots

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3
Q

anterior median sulcus

A

anterior spinal artery

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4
Q

dorsal median sulcus

A

very shallow; dorsal columns of spinal cord between this and dorsolateral sulcus

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5
Q

dorsal intermediate sulcus

A

cervical region; groove in middle of dorsal columns

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6
Q

3 regions of spinal cord

A

dorsal, lateral, anterior funiculi

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7
Q

dorsal columns

A

ascending track; legs medial and arms lateral (like in an actal person)

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8
Q

posterior intermediate sulcus

A

divides legs and arms track in dorsal columns

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9
Q

folia

A

small folds in cerebellum

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10
Q

primary fissure

A

separates folia of anterior lobe from posterior lobe of cerebellum

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11
Q

vermis

A

medial part of cerebellum

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12
Q

hemispheres of cerebellum

A

lateral part of cerebellum

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13
Q

flocculus

A

antero-inferior lobes of cerebellum

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14
Q

inferior cerebellar peduncle

A

provide input/output from cerebellum; connects cerebellum to dorsolateral side of medulla; appears as upward continuation from the spinal cord

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15
Q

middle cerebellar peduncle

A

connects pons to cerebellum; large bulge in lateral side of brainstem

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16
Q

superior cerebellar peduncles

A

conenct cerebellum to midbrain

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17
Q

basal pons

A

divides medulla and midbrain

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18
Q

gracile tubercle

A

superior ends of dorsal columns, protuberances over nuclei associated with ascending columns

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19
Q

tuber cinerium

A

small prominence on sides of medulla; marks trigeminal nerve fibers descending lateral brainstem

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20
Q

inferior olivary nucleus

A

large prominence on ventral-lateral part of medulla

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21
Q

post/preolivary sulcus

A

grooves on dorsal/ventral side of inferior olive

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22
Q

hypoglossal nerve

A

leaves brain from preolivary sulcus

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23
Q

glossopharyngeal and vagus nerves

A

leave brain from postolivary sulcus

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24
Q

medullary pyramid

A

two long cords running on ventral side of brainstem; cerebral cortex nerve fibers used for fine/skilled motor movements

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25
Q

pyramidal decussation

A

site where most of pyramidal nerve fibers cross; defines cervical-medullary junction

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26
Q

4th ventricle

A

diamond shaped; dorsal aspect of brainstem; begins at beginning of medulla and covers rostral medulla and pons

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27
Q

obex

A

caudal point of 4th ventricle; central canal of spinal cord opens into ventricular system

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28
Q

stria medullaris

A

crosses floor of 4th ventricle; defines division between medulla and pons

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29
Q

sulcus limitans

A

lateral groove on floor of 4th ventricle

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30
Q

hypoglossal trigone

A

medial to suclus limitans in medulla

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31
Q

vagus trigone

A

lateral to sulcus limitans in medulla

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32
Q

facial colliculus

A

medial in medulla; contains facial nerve and abducens nucleus

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33
Q

vestiblar trigone

A

lateral in medulla

34
Q

medial to lateral nerves of pontine-medullary junction

A

6, 7, 8

35
Q

acoustic tubercle

A

vestibulocochlear nerve bulge

36
Q

trigeminal nerve

A

passes through middle cerebellar peduncle

37
Q

cerebral peduncles

A

bands on either side of midbrain; contain most nerve fibers leaving cerebral cortex heading for brainstem or spinal cord; injury can be devastating

38
Q

interpeduncular fossa

A

depression between cerebral peduncles; oculomotor nerve eminates from this fossa

39
Q

corpora quadragemina

A

four bumps on dorsal surface of midbrain

40
Q

inferior colliculi

A

two caudal bumps of corpora quadragemina; deal with hearing

41
Q

superior colliculi

A

two rostral bumps of corpora quadragemina; eye responses to visual signals and loud sounds

42
Q

tectum

A

superior + inferior colliculi

43
Q

brachium of inferior colliculi

A

ridge running caudally to medial geniculate nucleus

44
Q

brachium of superior colliculi

A

ridge running to lateral geniculate nucleus

45
Q

diencephalon

A

rostral to midbrain; consists of hypothalamus, (dorsal) thalamus, epithalamus; walls of 3rd ventricle

46
Q

portions of hypothalamus

A

mamillary bodies, infundibulum, lamina terminalis

47
Q

stalk of pituitary gland

A

infundibulum and lamina terminalis extension to pituitary gland

48
Q

median eminence/tuber cinerium

A

bump on infundibulum critical for neuroendocrine control

49
Q

optic chiasm

A

rostral to infundibulum; nerve fibers from eye cross here

50
Q

epithalamus

A

dorsal side of diencephalon; contains pineal gland in midline and habenular nuclei

51
Q

3rd venticle

A

diencephalon = walls;

52
Q

hypothalamic sulcus

A

groove from A to P along wall of 3rd ventricle

53
Q

hypothalamus

A

ventral to hypothalamic suclus

54
Q

dorsal thalamus

A

walls of 3rd ventricle,

55
Q

massa intermedia/thalamic adhesion

A

between two thalami

56
Q

stria medullaris thalami

A

ridge from A to P along dorsal side of thalamus; from habenular nuclei

57
Q

thalamus

A

nuclei that are relay sites for cerebral cortex inputs for most general sensations

58
Q

medial geniculate bodies

A

chief relay site of auditory information to cerebral cortex

59
Q

lateral geniculate bodies

A

chief relay site of visual information to cerebral cortex

60
Q

telencephalon

A

newest portion; cerebral hemispheres and basal ganglia

61
Q

cerebral cortex

A

R and L hemispheres; 4 lobes

62
Q

Sylvian (lateral) fissure

A

divides cerebral cortex lobes

63
Q

central sulcus

A

divides cerebral cortex lobes

64
Q

parietal-occipital sulcus

A

divides cerebral cortex lobes

65
Q

frontal lobes

A

anterior to central sulcus

66
Q

temporal lobe

A

ventral to lateral fissure

67
Q

parietal lobe

A

between frontal and occipital lobes

68
Q

precentral gyrus

A

anterior to central sulcus; neurons directed to spinal cord for movement

69
Q

postcentral gyrus

A

posterior to central sulcus; termination of somatic sensory fibers coming from the thalamus; stimulation would cause certain sensations projected onto face

70
Q

transverse gyri

A

superior aspect of temporal lobe to depths of lateral fissure

71
Q

insula

A

superior aspect of temporal lobe to depths of lateral fissure

72
Q

calcarine sulcus

A

from posterior occipital to parietal-occipital sulcus

73
Q

corpus callosum

A

medial; commisural connections from one side of brain to other

74
Q

rostrum

A

rostral portion of corpus callosum

75
Q

splenium

A

posterior portion of corpus callosum

76
Q

cingulate gyrus

A

follows corpus callosum

77
Q

subcallosal region

A

ventral to rostrum

78
Q

septum pellucidum

A

separates two lateral ventricles

79
Q

fornix

A

inferior portion of septum pellucidum; follows lateral ventricle posterior and lateral into temporal lobe

80
Q

anterior commissure

A

dorsal/rostral to hypothalamus; connects two sides of brain

81
Q

interventricular foramen of Monroe

A

lets CSF travel from lateral ventricle to enter 3rd ventricle

Neuroscience Quiz 1 (14 decks)

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