Males The increased secretion of testosterone from the testes during puberty causes the male secondary sexual characteristics to be manifested. Testosterone directly increases size and mass of muscles, vocal cords, and bones, deepening of the voice, and changing the shape of the face and skeleton. Converted into DHT in the skin, it accelerates growth of androgen-responsive facial and body hair but may slow and eventually stop the growth of head hair. Taller stature is largely a result of later puberty and slower epiphyseal fusion. Overall, male secondary sex characteristics include: Growth of body hair, including underarm, abdominal, chest, and pubic hair. Growth of facial hair. Enlargement of the larynx (Adam's apple) and deepening of the voice.Sexual reproduction Increased stature; adult males are taller than adult females, on average. Heavier skull and bone structure. Increased muscle mass and strength. Broadening of the shoulders and the chest; the shoulders are wider than the hips. Increased secretions of the oil and sweat glands.
Males The increased secretion of testosterone from the testes during puberty causes the male: secondary sexual cha!racteristics to be manifested. Testosterone directly increases size and mass of muscles, vocal cor.ds, and bones, deepening of the voice, and changing the shape of the face and skeleton. Converted into DHT in the skin, it accelerates growth of androgen-responsive facial and body hair but may slow and eventually stop the growth of head hair. Taller stature is largely a result of later puberty and slower epiphyseal fusion. Overall, male secondary sex characteristics include: Growth of body hair, including underarm, abdominal, chest, and pubic hair. Growth of facial hair. Enlargement of the larynx (Adam's apple) and deepening of the voice.Sexual reproduction Increased stature; adult males are taller than adult females, on average. Heavier skull and bone structure. Increased muscle mass and strength. Broadening of the shoulders and the chest; the shoulders are wider than th?e hips. Increased secretions of the oil and sweat glands.