Transversospinalis Musculature

Question 1

muscles that are identified as transversospinalis muscles

Answer 1

semispinalis
multifidis
rotators

Question 2

transversospinalis muscles represent what layer of the true back

Answer 2

layer 5

Question 3

based on the name of this group, what is the origin-insertion of the transversospinalis

Answer 3

transverse process origin, spinous process insertion

Question 4

how many vertebrae can be attached to a single segment by transversospinalis muscle

Answer 4

as many as 9 vertebrae

Question 5

what segment will represent the lowest attachment site for the semispinalis thoracis

Answer 5

T12

Question 6

innervation of the semispinalis thoracis

Answer 6

dorsal rami of T1-T6 spinal nerves (cord levels T1-T6)

Question 7

osseous parts of the vertebral column that serve as an origin to the semispinalis cervicis

Answer 7

transverse tubercles of T1-T5 or T6 & articular processes of C4-C7

Question 8

innervation of the semispinalis cervicis

Answer 8

dorsal rami of C6-C8 spinal nerves (cord levels C6-C8)

Question 9

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

Answer 9

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

Question 10

innervation of the semispinalis capitis

Answer 10

dorsal rami of C1-C6 spinal nerves (cord levels C1-C6)

Question 11

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

Answer 11

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 12

contraction of the classic multifidis will result in what movements of the vertebral column

Answer 12

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

Question 13

innervation of the classic multifidis

Answer 13

dorsal rami of C3-C8, T1-T12, L1-L5 and S1 spinal nerves (cord levels C3-C8, T1-T12, L1-L5 and S1)

Question 14

contraction of multifidis crevicis will result in what movements

Answer 14

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 15

contraction of multifidis lumborum will result in what movements

Answer 15

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

Question 16

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

Answer 16

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

Question 17

rotator muscles are typically identified in what region of the spine

Answer 17

the thoracic region

Question 18

what is the classic origin of rotator brevis or its’ homolog

Answer 18

transverse process from C3 and each lower vertebrae to the dorsal surface of the sacrum
(C3-7, T1-12, L1-5, sacrum)

Question 19

what is the classic origin of rotator longus or its’ homolog

Answer 19

transverse processes from C4 and each lower vertebrae to the dorsal surface of sacrum

Question 20

what innervates the rotators

Answer 20

dorsal rami at the levels of insertion are believed to do so