Adam's apple

Gland

Hormones

primary sex characters

puberty

secondary sex characters

menopause

androgen

ICSH

The protruding part of the throat.

Group of cells which secrete hormones.

The chemical substances secrete in the body.

The characters which refer to changes in sex organs.

The period at which an organism attains sexual maturity.

The characters which help to distinguish the male from the female

at 45 to 50 years of age

testosterone

muscle development