Question

Curvature of vertebral column is helpful in

• A. Little jolting of viscera during springing
• B. Increasing size of chest
• C. Increasing size of pelvic region
• D. All of the above

Answer 1

Answer: (D)

All of the above

• The adult vertebral column is not a straight line instead it forms four curvatures along the length of the spinal cord.
  
• The curves help to increase th following:-

1. strength
2. flexibility
3. ability to absorb shock
4. They can spring back when heavyweight is removed (curvatures of the cord increase in depth and become more curved when carrying a heavy load).

• The four curvatures are classified as- primary or secondary curvatures.
• The primary curves are the ones which are retained from the fetal curvature whereas, the secondary curvatures develop after birth.
  
• So, the correct answer is 'All of the above'.