Question

Hinge joint is present between
A) Femur and ulna
B) Humerus and ulna
C) Femur and pectoral girdle
D) Femur and pelvic girdle

Answer 1

A joint is defined as the meeting place between bones and cartilages or between two bones. A hinge joint or cingulum is a type of freely movable or synovial joint. The three main types of joints in the body are- sutures, symphysis and synovial joints.

Complete answer:
Hinge joint is the type of joint in which one bone is movable on the other bone in only one plane. For example, elbow joint, ankle joint, knee joint and interphalangeal joints.
Humerus forms the elbow joint with radius and ulna, so it is an example of a hinge joint.

Additional information:
Synovial joints are the type of joints in which one bone forms a knob like swelling while another bone forms a depression. The ends of both the bones are covered with articular cartilages.
Between the two bones, there is a synovial cavity filled with a gelatinous synovial fluid bounded by a fibrous synovial membrane. Synovial fluid lubricates the joints for their free movement.
These joints are found between limb bones.
They are of following types-

Ball or socket joint or enarthrosis
Hinge joint or gingulum
Angular or ellipsoidal joint
Pivot or rotatory joint
Gliding or condyloid or arthrodial joints
Saddle joint

Note: Femur or thigh bone is the longest bone of the body. It articulates in the acetabulum of pelvic or the hip girdle by ball or socket joint.Pectoral girdle is also called the shoulder bone and it is formed of two bones- clavicle and scapula.