The pectoralis major is a thick, fan-shaped or triangular convergent muscle of the human chest. It makes up the bulk of the chest muscles and lies under the breast. Beneath the pectoralis major is the
Activation and protection of the Pectoralis major by a gymnast using talc.
The breasts are two prominences located on the upper ventral region of the torso in humans and other primates. Both sexes develop breasts from the same embryological tissues. The relative size and dev
Pectoralis major
…The pectoralis major (from Latin pectus 'breast') is a thick, fan-shaped or triangular convergent muscle of the human chest. It makes up the bulk of the chest muscles and lies under the breast. Beneath…
Morphology of female human breasts, with the areola, nipple, intermammary cleft and inframammary fold
Male human breasts with defined pectoral muscles
Mountain gorilla breastfeeding an infant
Breast development in puberty is measured with the five-stage Tanner scale