Refer to the figure below of an axial, T2-weighted MRI of the lumbar spine with intervertebral disk and zygapophyseal joints.

-Which arrow points to the annulus fibrosis?
A) A
B) B
C) C
D) D

Question

Refer to the figure below of an axial, T2-weighted MRI of the lumbar spine with intervertebral disk and zygapophyseal joints.
 
-Which arrow points to the annulus fibrosis?
A) A 
B) B 
C) C 
D) D

Quizplus · Accepted Answer

The annulus fibrosis is the tough, fibrous outer layer of the intervertebral disc. It is located between the vertebral bodies and the nucleus pulposus. Arrow A points to the annulus fibrosis.

Refer to the Figure Below of an Axial, T2-Weighted MRI