L13: Suboccipital Triangle

Question 1

bony articulations of the suboccipital triangle

Answer 1

occipital bone (condyles)
atlas
axis

Question 2

atlas - articulations

Answer 2

post tubercle
post arch
ant arch
transverse process
lateral masses

Question 3

how does the atlas articulate w/ the other parts of the suboccipital triangle

Answer 3

lateral masses of atlas

• -w/ occipital condyles
• -w/ axis

Question 4

axis - articulations

Answer 4

dens - odontoid process
spinous process
transverse process w/ foramina

Question 5

ligaments of the vertebral column

Answer 5

ant longitudinal lig
post longitudinal lig
ligamentum flavum
ligamentum nuchae

Question 6

what makes up the ligamentum nuchae

Answer 6

supraspinous lig

interspinous lig

Question 7

list the 3 synovial joints of the neck

Answer 7

btwn dens and ant arch of atlas

btwn lat mass of atlas and axis x2

Question 8

ligaments of the neck

Answer 8

apical lig
alar ligaments
cruciate llig
tectorial membrane

Question 9

suboccipital triangle muscles

Answer 9

obliquus capitis sup
obliquus capitis inf
rectus capitis post major
rectus capitis post minor

Question 10

weak extensor of the neck

Answer 10

obliquus capitis sup

Question 11

strong rotator of atlas

Answer 11

obliquus capitis inf

Question 12

extension of vertebral column

Answer 12

rectus capitis posterior major and minor

Question 13

what suboccipital triangle muscles connect C1 to occipital bone

Answer 13

rectus capitis post minor

obliquus capitis sup

Question 14

rectus capitis posterior major attachments

Answer 14

C2 to occipital bone

Question 15

obliquus capitis inferior attachments

Answer 15

C2 to C1

Question 16

floor of triangle

Answer 16

post atlanto-occipital memb

Question 17

roof of triangle

Answer 17

semispinalis capitis muscle

Question 18

suboccipital nerve

Answer 18

dorsal ramus of C1

no sensory function
no dorsal root
motor to muscles of suboccipital triangle

Question 19

greater occipital nerve

Answer 19

dorsal ramus C2

sensory to back of skull

Question 20

third occipital nerve

Answer 20

dorsal ramus C3

Question 21

contents of triangle

Answer 21

suboccipital n
greater occipital n
3rd occipital n
vertebral artery