Question

Ball and socket joint is present in 
(a) Wrist
(b) Fingers
(c) Neck 
(d) Shoulder 

Answer 1

Hint: Ball and socket joint is present in this place helps in the rotation of our arm in a circular manner. Generally, we will carry a bag using this part of our body and it helps in lifting and carrying. 

Complete answer:
Ball and socket joint: Ball and socket joint is a class of synovial joints. The curved surface of one bone interacts with the dent surface of the other bone providing maximum freedom of movement in all possible directions than the other type of joints.
The rotation of the shoulder, the rotation of your hip is made possible by the ball and socket joint.
Example: The spherical femur bone interacts with the pocket shaped acetabulum of the pelvis.
- A place where two bones contact and join with each other is called a joint and helps in bringing about various movements of our body. The joint type present will decide the nature and the extent of our body movement. We can walk, we can run, we can write, speak, etc., which are all made possible only because of the involvement of various joints present in our body.
- Joints are classified depending on their structural and functional aspects.
Structural classification of joints:
Structurally joints are classified into three types.
- Fibrous joints
- Cartilaginous joints
- Synovial joints
The following table gives the structural classification, nature of movements along with the examples of these joints.

Structural classification of joints	Nature of these joints	Examples
Fibrous joints	Non-movable joints	The rib cage, upper jaw, the backbone
Cartilaginous joints	Partially movable joints	Spinal cord
Synovial joints	Highly flexible joint	Neck joint, shoulder joint, knee joint

 Functional classification: Depending upon the nature and extent of movement, joints are classified into ball and socket joint, pivotal joint, hinge joint, condyloid joint, gliding joint, and saddle joint. 

So, the correct answer is, ‘(d) Shoulder’. 

Note: Arthritis is cartilage damage in joints. Shoulder arthritis occurs as the cartilage begins to break down on the side of the shoulder joint ball and/or socket. Shoulder arthritis symptoms can include shoulder joint pain, stiffness, and decreased range of motion.