Question

1. Define: Posture.
2. How would it affect us if the backbone was made up of one long bone instead of many small vertebrae?

Answer 1

Answer:

1 Posture is defined as the attitude assumed by the body either with support during the course of muscular activity, or as a result of the coordinated action performed by a group of muscles working to maintain the stability.

2 spinal cord is made of a long bone rather than a series of small bones (segments) then we will have difficulty in movements. There will be problem in bending forward, backward and sideways with flexibility. The shape of the back of human body is due to the shape of the spinal cord.