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Anatomy Unit 1 > Craniovertebral Joints > Flashcards

Craniovertebral Joints Flashcards

1
Q

Which joint contributes to nodding movement, tilting of head side-to-side?

A

Atlanta-occipital joint

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2
Q

Which joint contributes to rotation movement?

A

Atlanta-axial joint

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3
Q

What type of joint are the atlanto-occipital and Atlanta-axial?

A

synovial joints with no discs

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4
Q

What makes up the atlantoaxial joint?

A

ant arch of C1 and dens of C2

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5
Q

what makes up the Atlanta-occipital joint?

A

occipital condyles and superior facets of C1

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6
Q

What type of ROM is the Atlanta-occipital joint?

A

flexion/extension

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7
Q

What is the superior extension of the posterior longitudinal ligament?

A

tectorial membrane

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8
Q

What is the superior extension of anterior longitudinal ligament?

A

ant atlanto-occipital membrane

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9
Q

What is the uppermost extent of ligamentum flavum?

A

post Atlanta-occipital mem

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10
Q

What forms part of the post wall of vertebral canal?

A

post atlanto-occipital mem

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11
Q

What fills in the gaps between post vertebral arches?

A

ligamentum flava

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12
Q

What are the deep craniovertebral ligaments?

A

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

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13
Q

What holds the dens of axis tightly to ant arch of atlas?

A

transverse ligament of atlas

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14
Q

Where do fractures of the dens occur? Why don’t they reunite?

A

base of transverse ligament of atlas, fractures don’t reunite due to position of transverse ligament

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15
Q

What forms the cruciform ligament?

A

transverse ligament of atlas and superior and inferior longitudinal bands

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16
Q

Where does sup longitudinal band attach?

A

foramen magnum base

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17
Q

Where does inf longitudinal band attach?

A

dens of C2 posteriorly

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18
Q

where does alar ligament extend?

A

from dens to medial portions of occipital condyles

19
Q

What is the function of alar ligament?

A

stop excessive lateral rotation, strong paired ligament

20
Q

What is the slender band ascending from apex of dens?

A

apical ligament of dens

21
Q

Which ligament is located deep to sup longitudinal band of cruciform ligament?

A

apical ligament of dens

22
Q

What gives rise to internal carotid plexus?

A

sympathetic trunk

23
Q

What hangs from pharyngeal tubercle?

A

pharynx

24
Q

Which nerves give rise to sup and inf ganglia?

A

CNs IX and X

25
Q

Which m does CN IX travel with?

A

stylopharyngeus m between ICA and ECA

26
Q

What branches does CN X give off?

A

pharyngeal n and superior laryngeal n

27
Q

What does pharyngeal n travel between?

A

ICA and ECA to innervate pharynx

28
Q

Which nerves form pharyngeal plexus?

A

union of pharyngeal brs of CN IX and X

29
Q

Which CN contributes sensory fibers to plexus?

A

CN IX

30
Q

Which CN supplies motor innervation to most pharyngeal mm and carries p-symp?

A

CN X

31
Q

What mm does accessory n supply?

A

SCM and trapezius mm

32
Q

Where does CN XI travel?

A

between ICA and IJV

33
Q

What is located between buccopharyngeal fascia and alar fascia?

A

retropharyngeal space

34
Q

Where does retropharyngeal space extend?

A

from base of skull to sup mediastinum

35
Q

What structures are found in the pre-vertebral region?

A

sympathetic trunks, CNs IX, X, XI, XII, cervical spinal nn, vertebral vessels, pharyngeal plexus of vv

36
Q

Which nerves make uo the cervical plexus? post to longs capitis/colli mm

A

C1-C4

37
Q

Which nn form phrenic n? descend ant to anterior scalene mm

A

C3-C5

38
Q

Which nn form brachial plexus? run between ant and middle scalene mm

A

C5-C8

39
Q

Where does vertebral a arise?

A

subclavian a

40
Q

Where does vertebral v drain?

A

brachiocephalic v

41
Q

What are the 2 pharyngeal plexuses of vv?

A

external plexus and internal plexus

42
Q

Where is the external pharyngeal plexus?

A

outside of pharyngobasilar fascia

43
Q

Where is the internal pharyngeal plexus?

A

between pharyngobasilar fascia and constrictor mm

44
Q

where do external and internal plexus drain?

A

into pterygoid plexus of vv and IJV at angle of mandible

Anatomy Unit 1 (11 decks)

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