Anatomy Of Back And Spinal Cord

Question 1

The suboccipital muscles are a group of 4 muscles ,

Where are they situated ?

Answer 1

Underneath the occipital bone

Question 2

The suboccipital muscles are innervated by which nerve

Answer 2

Suboccipital nerve

Question 3

Name the 4 suboccipital muscles

Answer 3

Rectus Capitis posterior Major/ minor

Obliquus capitis superior/ inferior

Question 4

Name the attachments of the rectus capitis posterior major

Answer 4

Originates from the spinous process of the C2 vertebrae and inserts into the lateral part of the inferior nuchal line of the occipital bone

Question 5

What is the most medial of the suboccipital muscles

Answer 5

Rectus capitis posterior minor

Question 6

Name the attachments of the obliquus capitis inferior

Answer 6

Originates from the spinous process of the C2 vertebra and attaches into the transverse process of C1

Question 7

Where does the cervical vertebra lay between

Answer 7

It lays between the cranium and the thoracic vertebrae

Question 8

Name the 3 characteristics of the cervical vertebra

Answer 8

The cervical vertebrae have three features

Triangular vertebral foramen

Bifid spinous process - where the spinous process splits into two distally

Transverse foramina - gives passage to the vertebral artery, vein and sympathetic nerves

Question 9

What is the name of C1 and c2 vertebra

Answer 9

C1 - atlas

C2 - axis

Question 10

Why is c2 - axis

easily identifiable?

Answer 10

Due to its dens which extends superior From the anterior portion of the vertebrae