Types of joint

Question 1

What is the first joint and how its function

Answer 1

Ball and Socket
Function: Allow bones to move and rotate in nearly all direction.

Question 2

What is the second joint and how its function

Answer 2

Hinge
Function: allows bones to move back and forth in a single direction.

Question 3

What is the third joint and how its function

Answer 3

Pivot
Function: Allows bone to rotate