Topographic Anatomy Flashcards Preview

neuro > Topographic Anatomy > Flashcards

Flashcards in Topographic Anatomy Deck (85):
1

conus medullaris

the lowest tampering portion of the spinal chord

2

cauda equina

the pia mater extending beyond the conus medullaris

3

dorsolateral sulci

a small groove for the exit of nerve roots

4

ventrolateral sulci

a small groove for the exit of nerve roots

5

spine: anterior median sulcus

groove for vertebral artery

6

dorsal median sulcus

?

7

dorsal intermediate sulcus

only present in the upper spinal chord, separates arm and leg fibers

8

dorsal funiculus

the funiculus between the posterior median and posteriolateral sulci

9

lateral funiculus

between the dorsolateral and ventrolateral sulci

10

ventral funiculus

ventrolateral and anterior median sulcus

11

dorsal column

a tract that ascends in the dorsal column that conveys vibrations and well localized touch

12

ventral horn

alpha motor neurons

13

dorsal horn

sensory fibers

14

substantia gelationsa

the posterior portion of the dorsal horn

15

pons

the intermediate portion of the brainstem

16

medulla

the portion of the brain stem extending inferiorly from the pons to spinal chord

17

midbrain

the portion of the brain stem extending superiorly from the pons to diencephalon

18

inferior olive

a large ventral protuberance in the medulla

19

CN XII

arises from the preolivary sulcus (ventral side)

20

CN IX

arises form the postolivary sulcus(dorsal side)

21

CN X

arises form the postolivary sulcus(dorsal side)

22

medullary pyramids

ventral medullary structures that control voluntary movements

23

pyramidal decussation

site at which motor fibers in the medullary pyramids cross to the contralateral side

24

CN VI

arises from the junction of the pons and medulla

25

CNVII

arises from the junction of the pons and medulla

26

CN VIII

arises from the junction of the pons and medulla

27

CN V

arises from the middle cerebellar peduncle

28

cerebral peduncles

contains nerve fibers from the cortext heading to the brainstem

29

crus cerebri

aka cerebral peduncles

30

interpeduncular fossa

CN III arises here

31

CN III

arises from the interpeduncular fossa

32

cerebellum

large lobe on the posterior aspect of the brain

33

folia

small folds of the cerebellum

34

primary fissure

a deep division that separates the anterior and posterior divisons of the cerebellum

35

vermis

middle portion of the cerebellum

36

flocculus

lobes on the lateral portion between the cerebellum and midbrain

37

nodulus

lobes on the medial portion between the cerebellum and midbrain

38

inferior peduncle

dorsolateral side of medulla, appears like a continuation of the spinal chord

39

restirform body

inferior peduncle

40

middle cerebellar peduncles

connects the basal pons to the cerebellum

41

superior cerebellar peduncle

connects the cerebellum down to the rostral portion of the brainstem

42

fourth ventricle

separates the cerebellum from the dorsal brain stem

43

foramina of Lushka

a lateral foramen of the fourth ventricle that allows passage of CSF from the subarachnoid space

44

foramen of Magendie

a lateral foramen of the third ventricles that allows passage of CSF from the subarachnoid space

45

obex

the terminal portion of the fourth ventricle

46

gracile

medial tubercles on the caudal medulla, upward continuation of the dorsal columns

47

cuneate tubercles

lateral tubercles on the caudal medulla, upward continuation of the dorsal columns

48

facial colliculus

prominence on the floor of the fourth ventricle

49

vestibular trigone

prominence on the floor of the fourth ventricle

50

corpora quadrigemina

four prominences responsible for hearing and visaul reflexes located on the dorsum of the midbrain

51

inferior colliculus

dorsal midbrain colliculi associated with hearing

52

superior colliculi

dorsal midbrain colliculi associated with visual reflexes

53

brachium of inferior colliculi

small ridges in the dorsal midbrain running laterally from the inferior colliculus

54

brachium of superior colliculi

small ridges in the dorsal midbrain running laterally from the superior colliculus

55

diencephalon

thalamus, hypothalamus, epithalamus

56

thalamus

portion of the diencephalon

57

hypothalamus

portion of the diencephalon responsible for fight, flight, ect

58

epithalmus

small part of brain associated with the pineal gland

59

mamillary bodies

two prominence on the posterior aspect of the hypothalamus

60

infundibulum

the stalk of the pituitary, runs down the midline of the midbrain

61

lamina terminalis

rostral side of the infundibulum of the pituitary

62

optic chiasm

rostral to the infundibulum

63

thalmic adhesion

a connection between the two thalami

64

stria medullaris thalami

a ridge that runs from anterior to posterior along the third ventricle

65

habenula

stalk of the pineal gland

66

Sylvian fissure

lateral fissure

67

central sulcus

divides the post and precentral gyri

68

parieto-occipital sulcus

divides the parietal and occipital lobes

69

frontal lobe

anterior to the central sulcus

70

temporal

inferior to the sylvian fissure, hearing

71

precentral gyrus

control of movement

72

postcentral gyrus

sensation

73

transverse gyri

temporal lobe, responsible for hearing

74

insula

a group of small gyri tucked underneath the temporal lobe

75

calcarine sulcus

runs from the posterior tip of the occipital lobe toward the parieto-occipital sulcus. Borders visual gyri

76

corpus callosum

connects the two hemispheres

77

rostrum

anterior portion of the corpus callosum

78

splenium

posterior portion of the corpus callosum

79

subcallosal region

portion of the cingulate gyrus that wraps around the rostrum of the corpus callosum anteriorly

80

septum pellucidum

a thin membrane that separates the two lateral ventricles

81

anterior commissure

a small tract immediately adjacent to the course of the fornix

82

foramen of Monroe

an opening from the lateral to third ventricles

83

choroid plexus

irregular tissue extending through the foramen of Monroe to the third ventricle

84

caudate nucleus

floor of the lateral ventricle, runs from posterior to anterior

85

stria terminalis

a thin band that is in the groove between the thalamus and caudate nucleus. Connects the amygdala and hypothalamus