Transversospinalis Musculature Flashcards
Which muscles are identified as transversospinalis muscles
semispinalis, multifidis and rotators
Transversospinalis muscles represent what layer of the back
layer five
based on the name of this group, what is the origin-insertion of the transversospinalis
transverse process origin, spinous process insertion
how many vertebrae can be attached to a single segment by transversospinalis muscles
as many as nine vertebrae
What segment will represent the lowest attachment site for the semispinalis thoracis
T12
What is the innervation of the semispinalis thoracis
dorsal rami of T1-T6 spinal nerves (cord levels T1-T6)
What osseous parts of the vertebral column serve as an origin to the semispinalis cervicis
transverse tubercles of T1-T5 or T6 and articular processes of C4-C7
What is the innervation of the semispinalis capitis
dorsal rami of C1-C6 spinal nerves (C1-C6 cord levels
What osseous parts of the vertebral column serve as an origin to the classic multifidis
articular processes of C4-C7, transverse processes of T1-T12, mammillary processes of L1-L5 and the dorsal surface of S1-S4 or S5
Which transversospinalis muscle attaches to articular and mammillary processes along the spine
multifidis
What is the innervation of the classic multifidis
dorsal rami C3-C8, T1-T12, L1-L5 and S1 Cord levels C3-S1
Contraction of multifidis cervicis will result in what movements
alters the zygapophyseal capsular ligament response to injury as evidenced by neck pain and is a significant contributor to postural control of the head and neck
Contraction of the multifidis will result in what movemetents
lateral flexion and rotation of the lumbar spine, maintains lumbar lordotic curve and prevents entrapment of lumbar zygapophyseal capsular ligament during movement
which muscles of the spine exhibit a reversal of the expected origin-insertion combination
iliocostalis lumborum pars lumborum, longissimus thoracis pars lumborum and multifidis lumborum
