Final answer:
The bones located in the palm area of the hand are the five metacarpals. These bones form the structure of the palm, are numbered 1-5 starting with the thumb, and are connected to the phalanges via joints.
Step-by-step explanation:
Within the palm area of the hand, the bones that are present are called the metacarpals. There are five metacarpal bones that are elongated and form the structure of the palm. They are situated between the carpal bones of the wrist and the bones of the fingers and thumb. The metacarpal bones connect to the phalanges of the digits through metacarpophalangeal joints.
The metacarpal bones are numbered from 1 to 5, starting with number 1 located on the thumb side of the hand and moving towards the little finger. The first metacarpal bone, associated with the thumb, allows for a greater range of movement compared to the others. The other four metacarpal bones contribute to the firm structure of the hand. Therefore, the correct answer to the question is option a, Metacarpals.