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

Spencer's gross neuroanatomy structures Flashcards

(81 cards)

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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
pyramidal decussation
site where most of pyramidal nerve fibers cross; defines cervical-medullary junction
26
4th ventricle
diamond shaped; dorsal aspect of brainstem; begins at beginning of medulla and covers rostral medulla and pons
27
obex
caudal point of 4th ventricle; central canal of spinal cord opens into ventricular system
28
stria medullaris
crosses floor of 4th ventricle; defines division between medulla and pons
29
sulcus limitans
lateral groove on floor of 4th ventricle
30
hypoglossal trigone
medial to suclus limitans in medulla
31
vagus trigone
lateral to sulcus limitans in medulla
32
facial colliculus
medial in medulla; contains facial nerve and abducens nucleus
33
vestiblar trigone
lateral in medulla
34
medial to lateral nerves of pontine-medullary junction
6, 7, 8
35
acoustic tubercle
vestibulocochlear nerve bulge
36
trigeminal nerve
passes through middle cerebellar peduncle
37
cerebral peduncles
bands on either side of midbrain; contain most nerve fibers leaving cerebral cortex heading for brainstem or spinal cord; injury can be devastating
38
interpeduncular fossa
depression between cerebral peduncles; oculomotor nerve eminates from this fossa
39
corpora quadragemina
four bumps on dorsal surface of midbrain
40
inferior colliculi
two caudal bumps of corpora quadragemina; deal with hearing
41
superior colliculi
two rostral bumps of corpora quadragemina; eye responses to visual signals and loud sounds
42
tectum
superior + inferior colliculi
43
brachium of inferior colliculi
ridge running caudally to medial geniculate nucleus
44
brachium of superior colliculi
ridge running to lateral geniculate nucleus
45
diencephalon
rostral to midbrain; consists of hypothalamus, (dorsal) thalamus, epithalamus; walls of 3rd ventricle
46
portions of hypothalamus
mamillary bodies, infundibulum, lamina terminalis
47
stalk of pituitary gland
infundibulum and lamina terminalis extension to pituitary gland
48
median eminence/tuber cinerium
bump on infundibulum critical for neuroendocrine control
49
optic chiasm
rostral to infundibulum; nerve fibers from eye cross here
50
epithalamus
dorsal side of diencephalon; contains pineal gland in midline and habenular nuclei
51
3rd venticle
diencephalon = walls;
52
hypothalamic sulcus
groove from A to P along wall of 3rd ventricle
53
hypothalamus
ventral to hypothalamic suclus
54
dorsal thalamus
walls of 3rd ventricle,
55
massa intermedia/thalamic adhesion
between two thalami
56
stria medullaris thalami
ridge from A to P along dorsal side of thalamus; from habenular nuclei
57
thalamus
nuclei that are relay sites for cerebral cortex inputs for most general sensations
58
medial geniculate bodies
chief relay site of auditory information to cerebral cortex
59
lateral geniculate bodies
chief relay site of visual information to cerebral cortex
60
telencephalon
newest portion; cerebral hemispheres and basal ganglia
61
cerebral cortex
R and L hemispheres; 4 lobes
62
Sylvian (lateral) fissure
divides cerebral cortex lobes
63
central sulcus
divides cerebral cortex lobes
64
parietal-occipital sulcus
divides cerebral cortex lobes
65
frontal lobes
anterior to central sulcus
66
temporal lobe
ventral to lateral fissure
67
parietal lobe
between frontal and occipital lobes
68
precentral gyrus
anterior to central sulcus; neurons directed to spinal cord for movement
69
postcentral gyrus
posterior to central sulcus; termination of somatic sensory fibers coming from the thalamus; stimulation would cause certain sensations projected onto face
70
transverse gyri
superior aspect of temporal lobe to depths of lateral fissure
71
insula
superior aspect of temporal lobe to depths of lateral fissure
72
calcarine sulcus
from posterior occipital to parietal-occipital sulcus
73
corpus callosum
medial; commisural connections from one side of brain to other
74
rostrum
rostral portion of corpus callosum
75
splenium
posterior portion of corpus callosum
76
cingulate gyrus
follows corpus callosum
77
subcallosal region
ventral to rostrum
78
septum pellucidum
separates two lateral ventricles
79
fornix
inferior portion of septum pellucidum; follows lateral ventricle posterior and lateral into temporal lobe
80
anterior commissure
dorsal/rostral to hypothalamus; connects two sides of brain
81
interventricular foramen of Monroe
lets CSF travel from lateral ventricle to enter 3rd ventricle

Neuroscience Quiz 1 (14 decks)

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