Question

Which of the following types of joints are present in the elbow?
(a)Ball and socket joint
(b)Hinge joint
(c)Fixed joint
(d)All of the above

Answer 1

Hint: The area where two or more than two bones meet together are known as joints. Joints are non-motile in adults such as the joints in the skull and some joints can move a little such as the vertebrae.

Complete answer:
Hinge joints are present in the elbow which is a synovial joint surrounded by cartilage and includes the ankle and knee joints. They are formed between two or more bones. These bones can move along one exercise to flex or extend. They can rotate up to 180 degrees maximum. Elbow is a hinged joint that constitutes three bones i.e. the humorous, ulna humor, and radius. The joints slide easily against each other through the cartilage which has a rubbery consistency and absorbs shock. The ligaments hold the bones together and form the joint capsule which is a fluid-filled sac surrounding it and lubricates the joint. The collateral ligament and the lateral collateral ligament are the important ligaments of the elbow which are present on the inside and outside of the elbow respectively.

Additional Information: Ball and socket joint: It is a type of synovial joint that surfaces the round bone that fits into the cup-like the depression of another bone. It enables the joint to move in many directions and it is capable of moving around an indefinite number of axes that consist of one common center. When the socket covers the sphere beyond its equator it forms a special kind of steroid joint known as enarthrosis. The hip joint forms a ball and socket joint. It constitutes the round head of the femur rest in the cup-like acetabulum of the pelvis. The upper extremity of the humerus which rests in the cup-like glenoid fossa of the shoulder forms the ball and socket joint in the shoulder.
Fixed joint: It is a type of movable synovial joint which is held together such as the muscles or tendons and ligaments. They are connected by the fibrous tissues which constitute collagen and are united by a layer of white fibrous tissue of varying thickness The teeth in the sockets of the jaw form the fixed including the skull bones.

So, the correct answer is 'Hinge joint'.

Note: The hip joint is the largest ball and socket joint in the human body which remains stable during twisting and extreme ranges of motion. Joints make the skeleton flexible and it would be impossible to move without joints. Vitamin D and estrogen are important for musculoskeletal health.