Question

The number of vertebrae in a human is

• A. 206
• B. 7
• C. 12
• D. 26

Hint:

Remember: 33 vertebrae in young age 26 bones in adult vertebral column after fusion.

Answer 1

The Correct Option is D

Concept: The human vertebral column forms the central supporting axis of the body. In early life humans possess 33 vertebrae, but some fuse during adulthood. Thus adults effectively have 26 vertebral bones.

Step 1: Understand vertebral divisions.
The vertebral column consists of 7 cervical vertebrae 12 thoracic vertebrae 5 lumbar vertebrae 5 sacral fused vertebrae 4 coccygeal fused vertebrae

Step 2: Calculate total in adults.
Since sacral and coccygeal regions fuse, Adult count becomes \[ 24 + 1 + 1 = 26 \]

Step 3: Check options.
206 = total bones of body 7 = cervical only 12 = thoracic only 26 = adult vertebral column Hence answer \[ \boxed{\text{Option (4)}} \]