List the bones of the Pectoral girdle.

Explanation

1. The upper limbs are attached to the pectoral girdles.
2. The girdle is formed of two halves. Each half of the pectoral girdle consists of a clavicle or collar bone and a scapula.
3. Scapula has a slightly a slightly eleveted ridge called the spine which projects as a flat, expanded process called the acromion.
4. The clavicle articulates with this process. Below the acromion is a depression called the glenoid cavity which articulates with the head of the humerus to form the shoulder joint.
The Upper limb:
1. The upper limb consists of 30 separate bones and is specialized for mobility.
2. The skeleton of the arm is the humerus.
3. The head of humerus articulates with the glenoid cavity of the scapula and forms the shoulder joint.
4. The distal end of humerus articulates with the two forearm bones the radius and ulna.
5. The forearm is the region between the elbow and the wrist.
6. Olecranon process is situated at the upper end of the ulna which forms the poined portion of the elbow.
7. The hand consists of Carpals, Metacarpals and Phalanges.
Carpals, the wrist bones, 8 in number are arranged in two rows of tour each. The anterior surface of the wrist has tunnel-like appearance, due to the arrangement of carpals with the ligaments. This tunel is termed as carpal tunnel.
Metacarpals, the palm bones are 5 in number and Phalanges the digits bones are 14 in number.