Unit 1 - Back: Short Nuchal & Craniovertebral Joint Musles (Deep Back Muscles) (Ex. I)

Question 1

rectus capitis posterior major

Answer 1

O: spinous process of C2
I: middle third of I nuchal line of O bone (more lateral than minor)
Inn: suboccipital N (C1) from P ramus
A: together extends head; ipsilaterally rotates head

Question 2

obliquus capitis superior

Answer 2

O: transverse process of C1
I: middle third of I nuchal line of O bone, above RCPMa
Inn: suboccipital N (C1) from P ramus
A: together extends head; ipsilaterally flexes head and contralaterally rotates

Question 3

obliquus capitis inferior

Answer 3

O: spinous process of C2
I: transverse process of C1
Inn: suboccipital N (C1) from P rami
A: together extends head; ipsilaterally rotates head

Question 4

rectus capitis posterior minor

Answer 4

O: P tubercle of C1
I: inner third of I nuchal line of O bone
Inn: suboccipital N (C1) from P ramus
A: together extends head; ipsilaterally rotates head