Exam 1 - Back - Vertebrae

Question 1

How many vertebrae are there for each section of the vertebral column?

Answer 1

Cervical (7), Thoracic (12), Lumbar (5), Sacrum (5 segments), Coccyx (4 segments).

Question 2

Name some distinguishing features of cervical vertebrae.

Answer 2

Smaller, Bifid Spinous Process, Triangular Foramen Magnum, Transverse Foramina are present

Question 3

Name some distinguishing features of thoracic vertebrae.

Answer 3

Medium sized, Circular Foramen Magnum, Spinous Process is long and sloping inferior (no space between vertebrae), 2 costal facets on body, long transverse process with foramina

Question 4

Name some distinguishing features of lumbar vertebrae.

Answer 4

Large body, Triangular Foramen Magnum, Short spinous process that points posteriorly, Transverse process more slender, space between vertebrae (good for LP’s), no costal facets

Question 5

Name some distinguishing features of C1 (atlas).

Answer 5

No body. Ring-like. Has anterior and posterior arch. Has two lateral masses.

Question 6

Name some distinguishing features of C2 (axis).

Answer 6

Dens acts as a pivot point for C1 and the attached head to rotate side to side. 2 large Superior Articular Facets lateral to the dens. Bifid Spinous Process.