9/29 Questions Flashcards
What is the classic origin of rotator brevis or its homolog?
transverse processes from C3 and each lower vertebra to the dorsal surface of sacrum (C3-C7, T1-T12, L1-L5, sacrum)
What is the classic origin of rotator longus or its homolog?
transverse processes from C4 and each lower vertebra to the dorsal surface of sacrum
What innervates the rotators?
dorsal rami at the level of insertion are believed to do so
Which suboccipital muscle lacks an attachment to the skull?
obliquus capitis inferior
Which nerve will innervate all suboccipital muscles?
the dorsal ramus of C1, the suboccipital nerve
What is the origin of the rectus capitis posterior major?
the spinous tubercle of C2
What is the origin of the rectus capitis posterior minor?
the posterior tubercle of the posterior arch of C1
What is the origin of the obliquus capitis inferior?
C2 spinous process and lamina
What is the insertion of the obliquus capitis inferior?
transverse process of C1
What is the origin of the obliquus capitis superior?
the posterior tubercle of the transverse process of C1
An increase in the density of muscle spindles is most apparent in which suboccipital muscle?
obliquus capitis inferior
What is the result of communication between suboccipital muscles, visual centers and vestibular centers?
coordination of head and eye position
What is the proposed function of the suboccipital muscle group?
postural stabilizers of the atlanto-occipital and atlanto-axial joint
Which suboccipital muscles are known to attach to dura mater?
rectus capitis posterior major
rectus capitis posterior minor
obliquus capitis inferior
Interspinalis is paired in which regions of the spine?
cervical and lumbar regions