THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -Scaphoid. Lunate. Triquetrum. Pisiform.

Detailed explanation-2: -The palm has five bones known as metacarpal bones, one to each of the 5 digits. These metacarpals have a head, a shaft, and a base. Human hands contain fourteen digital bones, also called phalanges, or phalanx bones: two in the thumb (the thumb has no middle phalanx) and three in each of the four fingers.

Detailed explanation-3: -The fifth metacarpal bone is one of the five metacarpal bones of the hand. The fifth metacarpal is associated with the fifth digit. The metacarpal bone consists of a head (distally located), neck, body, and base (proximally located).

Detailed explanation-4: -In humans the five metacarpals are flat at the back of the hand and bowed on the palmar side; they form a longitudinal arch that accommodates the muscles, tendons, and nerves of the palm. The metacarpals also form a transverse arch that allows the fingertips and thumb to be brought together for manipulation.