HUMAN NUTRITION

Detailed explanation-1: -The thumb is the first digit of the hand, next to the index finger. When a person is standing in the medical anatomical position (where the palm is facing to the front), the thumb is the outermost digit.

Detailed explanation-2: -Thumb definition Thumb refers to the first digit of the human hand, set apart and opposable to the other four digits of the hand. Appendages like your fingers, toes, and thumbs are digits. So humans usually have five digits per hand, one of which is the thumb.

Detailed explanation-3: -The human hand has 27 bones: the carpals or wrist accounts for 8; the metacarpals or palm contains five; the remaining fourteen are digital bones; fingers and thumb. 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.

Detailed explanation-4: -The freely movable part of our hand is made up of five digits (four fingers and one thumb). Each finger has three individual bones, and the thumb only has two. The fingers have three joints each, which can only be bent and stretched in one direction.