widening of hips:oestrogen::deepening of voice in male
Answers
Answer:
Several changes that occur in teenage boys cause their voices to deepen. The cartilage in the voice box is very sensitive to testosterone. As this cartilage receives testosterone, sent from the testicles, it grows larger and thicker. At the same time, the vocal cords grow 60% longer and become thicker.
Explanation:
During Teenage( adolescence)
several physical changes occurs in Boys and girls.
In Boys, the level of Testosterone hormone, which is produced in the testicles, Increased rapidly. Due to which
a boy becomes a man. Muscles gets stronger, bone mass increases , deepening voice as well as sex drive,etc.
In Girls, Oestrogen is one of the main female sex hormones. It is formed in Female endocrine systems. Due to which a girl becomes a woman. Girl's breasts are getting enlarged, hips are widening, are getting able to childbearing, bone strengthening, etc.