Craniovertebral Joints & Prevertebral Region Flashcards Preview

SP16 Anatomy Exam 2 > Craniovertebral Joints & Prevertebral Region > Flashcards

Flashcards in Craniovertebral Joints & Prevertebral Region Deck (72):
1

what are the 2 craniovertebral joints

atlanto-occipital joint
atlanto-axial joint

2

what movement does the atlanto-occipital joint contribute to?

nodding movement

3

which joint allows tilting of the head, side-to-side

atlanto-occipital joint

4

which joint contributes to rotation movement

atlanto-axial joint

5

what kind of joint are the 2 craniovertebral joints?

synovial joints with no discs

6

what structure the atlanto-axial rotation move around?

dens

7

what does the vertebral a arise from?

subclavian a

8

what does the vertebral v drain into?

brachiocephalic v

9

what do the vertebral artery and vein enter?

foramina of C6 and above

10

where do the vertebral veinis arise in?

suboccipital triangle

11

what do the vertebral veins form?

plexuses

12

what are the 2 pharyngeal plexuses of veins?

external and internal plexus

13

where does the external plexus form outside of?

pharyngobasilar fascia

14

where does the internal plexus form?

between pharyngobasilar fascia and constrictor mm

15

what do the internal and external plexus drain into?

pterygoid plexus of vv and IJV

16

what do C1-C4 cervical nerves form?

cervical plexus

17

what do C3-C5 nerves form?

phrenic nn

18

where do the C3-C5 nerves descend to?

anterior scalene mm

19

what do the C5-C8 form?

brachial plexus

20

where does CN IX travel to?

posterior tongue and pharynx

21

where does CN X travel into?

thorax

22

where is CN X found in?

carotid sheath

23

what does CN XI travel to?

SCM and trapezius

24

where does CN XII travel to?

tongue

25

what is in the prevertebral region

sympathetic trunk
CN IX X XI XII
cervical spinal nn
vertebral vessels
pharyngeal plexuses of vv

26

what is the logical plane of separation of head and viscera

retropharyngeal space

27

what kind of tissue doe the retropharyngeal space contain?

loose connective tissue

28

where does CN XII enter through

hypoglossal canal

29

CN XII supply?

muscles of tongue

30

CN XI supply?

SCM and trapezius mm

31

what is the cranial vault lined with?

periosteal dura mater

32

does the periosteal dura mater run continously with the spinal column?

yes

33

what is beneath the periosteal dura mater

tectorial membrane

34

what is the tectorial membrane become inferiorly?

posterior longitundinal ligament

35

what is beneath the tectorial membrane?

craniovertebral joints and deep ligaments

36

what are the two ligaments that line the spinal cord anteriorly and posteriorly?

anterior and posterior longitudinal ligaments

37

what is a superior extension of the anterior longitudinal ligament?

anterior atlanto-occipital membrane

38

what is a superior extension of the posterior longitudinal ligament?

tectorial membrane

39

where does the anterior atlanto-occipital membrane attach?

base of occipital bone superiorly at margin of foramen magnum

40

what covers the anterior arch of atlas inferiorly?

anterior atlanto-occipital membrane

41

what is the posterior membrane between atlas and occipital bone called?

posterior atlanto-occipital membrane

42

what fills in gaps between posterior vertebral arches?

ligamentum flava

43

what are the 2 things that form part of posterior wall of vertebral canal

posterior atlanto-occipital membrane
ligamentum flavum

44

what are the 4 deep ligaments

transverse ligament of the atlas
cruciform ligament of the atlas
alar ligaments
apical ligament of the dens

45

what is the purpose of the transverse ligament of atlas

holds dens of axis (c2) tightly to anterior arch of atlas (c1)

46

if fractures occur at the base of the dens, does transverse ligament of atlas allow them to reunite?

nah

47

what are the 3 things that make up the cruciate ligament

superior longitudinal band
transverse ligament of atlas
inferior longitudinal band

48

what kind of shape does the cruciate ligament form?

cross

49

what band attaches to foramen magnum base

superior longitudinal band

50

what band attaches to dens of C2 post

inferior longitudinal band

51

where is the alar (check) ligament

extends from dens to medial portions of occipital condyles

52

which ligaments are super super strong?

alar (check) ligament

53

which ligament helps with the transverse ligament?

apical ligament of dens

54

what is the function of the apical ligament of dens and transverse ligament

holds dens to the anterior arch of C1

55

where does the apical ligament of dens attach

anterior margin of foramen magnum

56

what vein emerges from the jugular foramen

internal jugular vein

57

what enters the carotid canal

internal carotid artery

58

what gives rise to internal carotid plexus

sympathetic trunk

59

what emerges from stylomastoid foramen

CN VII

60

which cranial nerves emerge from jugular foramen

IX X XI

61

what cranial nerve emerges from hypoglossal canal

XII

62

which cranial nerves give rise to superior and inferior ganglia

IX X

63

what gives rise to superior cervical ganglion

sympathetic trunk

64

what sends off internal carotid plexus

sympathetic trunk

65

what innervates stylopharyngeus muscle

CN IX

66

what are the 2 branches of the vagus nerve?

pharyngeal nerve
superior laryngeal nerve

67

what does the pharyngeal nerve innervate

pharynx

68

what does the superior laryngeal nerve innervate

larynx

69

what is the pharyngeal plexus of nerves formed by?

union of pharyngeal branches of CN IX and CN X

70

what cranial nerve contributes sensory fibers to the pharyngeal plexus

CN IX

71

what cranial nerve contributes motor innervations to pharyngeal mm and carries p-symp?

CN X

72

where do the sympathetic fibers from the pharyngeal plexus of nerves come from?

superior cervical ganglion