Question

Nucleus pulposus is

• A. A type of special cell found in myelin sheath of a nerve cell of vertebrate
• B. A depression for pituitary is found in mammalian skull
• C. A large nucleus found in Schwann cells of nerve fibre
• D. A remain of embryonic notochord found in the central portion of inter-vertebral discs of vertebrae of mammals

Answer 1

The correct option is D A remain of embryonic notochord found in the central portion of inter-vertebral discs of vertebrae of mammals

Nucleus pulposus is the inner core of the vertebral disc. The core is composed of a jelly-like material that consist of mainly water, as well as a loose network of collagen fibers. The elastic inner structure allows the vertebral disc to withstand forces of compression and torsion.

So, option D is the correct option.