2 doctors weighed in:

What exactly is a lumbar disc in your back?

2 doctors weighed in
Dr. Thomas Dowling
Orthopedic Surgery - Spine

In brief: It is a structure

That acts like a joint by joining 2 bones together while allowing motion and weight bearing.
It is 90% water at birth and dries up as we age. It has 2 distinct parts, an outer or annulus layer and an inner core, the jelly like nucleus pulposus. The annulus is similar to steel belts in a tire wrapping around forming the outer layer as a strong, tough layer that frays and cracks with age.

In brief: It is a structure

That acts like a joint by joining 2 bones together while allowing motion and weight bearing.
It is 90% water at birth and dries up as we age. It has 2 distinct parts, an outer or annulus layer and an inner core, the jelly like nucleus pulposus. The annulus is similar to steel belts in a tire wrapping around forming the outer layer as a strong, tough layer that frays and cracks with age.
Dr. Thomas Dowling
Dr. Thomas Dowling
Thank
Dr. Chittur Ananthakrishnan
Orthopedic Surgery - Reconstruction

In brief: Low back area

These are the lower back discs in the small of your back.

In brief: Low back area

These are the lower back discs in the small of your back.
Dr. Chittur Ananthakrishnan
Dr. Chittur Ananthakrishnan
Thank
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