Primary Sex Characteristics

Definition

These are the biological and physiological features that differentiate males from females, such as reproductive organs. They are present from birth and play a direct role in reproduction.

Related terms

Gonads: These are the primary reproductive organs (testes in males and ovaries in females) that produce gametes (sperm or eggs).

Gametes: These are reproductive cells (sperm in males and eggs in females) produced by gonads.

Sexual Dimorphism: This refers to physical differences between male and female individuals of the same species beyond their sexual organs, often including size, coloration, or body structure.