Question

Glenoid cavity is found in
A. Pelvic girdle
B. Skull
C. Pectoral girdle
D. Sternum

Answer 1

Hint: It is created by the bones that connect each upper limb to the axial skeleton. It's often referred to as a shoulder girdle. It consists of two bones, the clavicle and the scapula.

Complete Answer:
The skeletal system provides our body with a supportive foundation and assists with balance and locomotion. It provides the inner organs with protection. Special forms of connective tissues, such as bones and cartilage, are part of our skeletal system. In an adult human being, there are 206 bones found in total. Due to Ca salts found in the matrix, bones are strong, while cartilage retains chondroitin salts.

Now, let us find the solution from the options-
- There are two coxal bones in the pelvic girdle, the sacrum and the coccyx. Therefore the option A is incorrect.
- The cranium and facial bones form the skull together. Therefore, option B is incorrect.
- There are two scapulae in the pectoral girdle; each scapula has a spine, acromion process, coracoid system, and glenoid cavity. The glenoid cavity arises in combination with the humeral head which allows the pectoral girdle stability.
- Sternum with ribs forms a rib cage. Therefore, the option D is incorrect.

Thus, the correct answer is option (C) Pectoral girdle.

Note: The human skeleton can be classified into an 80-bone axial skeleton and a 126-bone appendicular skeleton. The axial skeleton comprises with the spine, the skull, the sternum, and the ribs. Appendicular skeleton comprises pelvic and pectoral girdle and limbs.