Transversospinalis Musculature

Question 1

What muscles are identified as transversospinalis muscles?

Answer 1

semispinalis, multifidus, and rotators

Question 2

How many vertebrae can be attached to a single segment by transversospinalis muscles/

Answer 2

as many as nine vertebrae

Question 3

What segment will represent the lowest attachment site for the semispinalis thoracis?

Answer 3

T12

Question 4

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

Answer 4

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

Question 5

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

Answer 5

transverse tubercles of C7, T1-T6 or T7 & articular processes of C4-C8

Question 6

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

Answer 6

biventer cervicis

Question 7

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

Answer 7

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

Question 8

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

Answer 8

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

Question 9

Contraction of multifidis lumborum will result in what movement?

Answer 9

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

Question 10

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

Answer 10

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

Question 11

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

Answer 11

the thoracic region