Question

Gliding joint is present between
A)Carpals
B)Humerus and pectoral girdle
C)Carpal and metacarpal of thumb
D)Knee

Answer 1

Hint: A gliding joint, also known as a plane joint or planar joint, is a common type of synovial joint developed between bones which meet on flat or nearly flat articular surfaces. Gliding joints allow the bones to travel up and down in any direction along the joint's plane, left and right, and diagonally, past each other.

Complete answer:
These joints may also have minor rotations, but are constrained by the shape of the bones and the elasticity of the surrounding joint capsule.

Between the carpal bones of the wrist, between the carpals and the metacarpals of the palm, between the tarsal bones of the ankle and between the tarsals and the metatarsals of the foot, several gliding joints are developed in the appendicular skeleton. To provide the hands and feet with exceptional flexibility, these small bones form several flattened facets between each other.

Another gliding joint is the acromioclavicular (AC) joint of the shoulder, which significantly increases the stability of the shoulder and provides a pivot point for raising or depressing the shoulders around it.

Gliding joints are often developed in the neck and trunk throughout the axial skeleton to increase the flexibility of these regions. In the thoracic region, two sets of gliding joints, one set between the sternum (breast bone) and ribs at the sternocostal joints, and the other between the vertebrae and ribs at the vertebrocostal joints, cause the ribs to slightly raise and depress and adjust the thoracic cavity's volume. To perform the vital process of breathing these slight rib movements are required .

Examples of hinge joints are the elbow, the knee and the ankle. The pivot joint is the joint between the atlas and the axis. Between the glenoid cavity of the pectoral girdle and the humerus head, there is a ball and socket joint.

Hence, the correct answer is option (A)

Note: Between the facets of the twenty-six vertebrae at the intervertebral joints, there is another group of gliding joints. These gliding joints allow the trunk to be flexed, extended, laterally flexed, and rotated while retaining the strength of the vertebral column that supports the weight of the body and protects the spinal cord.