Skeletal System - Vertebral column

5 important questions on Skeletal System - Vertebral column

Q: How many vertebrae are in the vertebral column?


A: 33 (7 cervical, 12 thoracic, 5 lumbar, 5 fused sacral, 4 fused coccygeal).

Q: What are the functions of the vertebral column?

A: Protects the spinal cord, supports the head, attachment for ribs/muscles, allows movement, and transfers weight to the pelvis.

Q: What are the two parts of an intervertebral disc?

A: Nucleus pulposus (gel-like core) and annulus fibrosus (outer fibrocartilage).
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Q: Which spinal curves are primary? Secondary?

A: Primary: thoracic & sacral (present at birth). Secondary: cervical & lumbar (develop with movement).

Q: What are the three main abnormalities of spinal curvature?

A: Scoliosis (lateral curve), kyphosis (excess thoracic curve), lordosis (excess lumbar curve).

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