Page 78 - 86 human physiology part-2

The Male Reproductive System

lean body mass of an average female, and about 50% of the body fat.

This muscle develops mainly during the later stages of puberty, and muscle growth can continue
even after a male is biologically adult. The peak of the so-called "strength spurt," the rate of muscle
growth, is attained about one year after a male experiences his peak growth rate.

Body odor, skin changes, acne

Rising levels of androgens can change the fatty acid composition of perspiration, resulting in a
more "adult" body odor. As in girls, another androgen effect is increased secretion of oil (sebum) from
the skin and the resultant variable amounts of acne.

Sexual Homology

In short, this is a known list of sex organs that evolve from the same tissue in a human life.

Indifferent Male Female

Gonad Testis Ovary
Mullerian duct Appendix testis Fallopian tubes
Mullerian duct Prostatic utricle Uterus, proximal vagina

Wolffian duct Rete testis Rete ovarii
Mesonephric Efferent ducts Epoophoron
tubules

Wolffian duct Epididymis Gartner's duct
Wolffian duct Vas deferens
Wolffian duct Seminal vesicle

Wolffian duct Prostate Skene's glands
Bladder, urethra, distal
Urogenital sinus Bladder, urethra
vagina
Bulbourethral
Urogenital sinus Bartholin's gland
gland

Genital swelling Scrotum Labia majora
Urogenital folds Distal urethra Labia minora
Genital tubercle Penis Clitoris

Prepuce Foreskin Clitoral hood
Bulb of penis Vestibular bulbs

Glans penis Clitoral glans
Crus of penis Clitoral crura

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