Question

Spinal cord is a cylindrical tube with a narrow cavity, lined by ependymal cells. This cavity is called ___________.

• A. central canal
• B. neural canal
• C. inguinal canal
• D. central sulcus

Hint:

{Central canal} is the cavity of the spinal cord, lined by ependymal cells.

Answer 1

The Correct Option is A

Step 1: Structure of spinal cord.
The spinal cord contains a small central cavity that runs longitudinally through it.
Step 2: Lining of the cavity.
This cavity is lined by ependymal cells, which are specialized glial cells.
Step 3: Identification of the cavity.
(A) central canal: Correct. It is the cavity present inside the spinal cord.
(B) neural canal: Incorrect. This term is not used for spinal cord cavity.
(C) inguinal canal: Incorrect. It is related to the abdominal region.
(D) central sulcus: Incorrect. It is a groove on the brain surface.