Day 36 (Transversospinalis Musculature, Suboccipital Musculature,

Question 1

What osseous parts of the vertebral column serve as an origin to the semispinalis capitis?

Answer 1

transverse tubercles of C7, T1-T6 or T7 & articular processes of C4-C6

Question 2

The semispinalis capitis and spinalis capitis may fuse to form what muscle?

Answer 2

biventer cervicis

Question 3

What osseous parts of the vertebral column serve as an origin to the classic multifidis?

Answer 3

articular process of C4-C7, transverse processes of T1-T12, mammillary processes of L1-L5 and the dorsal surface of S1-S4 or S5

Question 4

Contraction of the classic multifidis will result in what movements of the vertebral column?

Answer 4

lateral flexion & rotation of the spine, maintains the lumbar lordotic curve and prevents entrapment of zygapophyseal capsular ligament during movement

Question 5

Contraction of multifidis cervicis will result in what movements?

Answer 5

alters the zygapophyseal capsular ligament response to load distribution determines the cervical spine response to injury as evidenced by neck pain and is a significant contributor to postural control of the head and neck

Question 6

Contraction of multifidis lumborum will result in what movements?

Answer 6

lateral flexion & rotation of the lumbar spine, maintains the lumbar lordotic curve and prevents entrapment of lumbar zygapophyseal capsular ligament during movement

Question 7

Which muscles of the spine exhibit a reversal of the expected origin-insertion combination?

Answer 7

iliocostalis lumborum pars lumborum, longissimus thoracic pars lumborum and multifidis lumborum

Question 8

Rotator muscles are typically identified in what region of the spine?

Answer 8

the thoracic region

Question 9

Which suboccipital muscle lacks an attachment to the skull?

Answer 9

obliquus capitis inferior

Question 10

Which nerve will innervate all suboccipital muscles?

Answer 10

the dorsal ramus of C1, the suboccipital nerve

Question 11

What is the origin of the obliquus capitis inferior?

Answer 11

C2 spinous process and lamina

Question 12

An increase in the density of muscle spindles is most apparent in which suboccipital muscle?

Answer 12

obliquus capitis anterior

Question 13

What is the proposed function of the suboccipital muscle group?

Answer 13

postural stabilizers of the atlanto-occipital and atlanto-axial joints

Question 14

Which suboccipital muscles are known to attach to dura mater?

Answer 14

rectus capitis posterior major, rectus capitis posterior minor, & obliquus capitis inferior

Question 15

Interspinalis is paired in which regions of the spine?

Answer 15

cervical and lumbar regions

Question 16

Based on the density of muscle spindles what is the proposed function of the interspinalis?

Answer 16

acts as a proprioceptive transducer in conjunction with intertransversarii to coordinate the smooth movement of the spine and to maintain appropriate posture