Muscle Group
The pectoralis major muscle is a part of the muscle group known
as the pectoral girdle. The pectoral girdle is similar to the pelvic girdle
of the hind limbs—which both are components that form the appendicular skeleton.
However, the pectoral girdle is located superior to the pelvic girdle and
supports the forelimbs. The pectoral girdle includes the clavicle and scapula,
and the muscles attached to the pectoral girdle, such as the pectoralis major,
are used to move the arms. The diagram below displays the
anterior view of the pectoral girdle.
as the pectoral girdle. The pectoral girdle is similar to the pelvic girdle
of the hind limbs—which both are components that form the appendicular skeleton.
However, the pectoral girdle is located superior to the pelvic girdle and
supports the forelimbs. The pectoral girdle includes the clavicle and scapula,
and the muscles attached to the pectoral girdle, such as the pectoralis major,
are used to move the arms. The diagram below displays the
anterior view of the pectoral girdle.