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Male

Female

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Anatomy of the Male Reproductive System

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Scrotum

pouch of skin that hangs at root of penis and contains the testes

Protective sac provides temperature about 3C below

body temperature for proper sperm production

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Testes

Glands that produce sperm Secrete testosterone

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Epididymis

Stores sperm temporarily Takes about 20 days for sperm to

mature

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Vas Deferens

Muscle contractions propel live sperm to urethra

Transportation system cut during a vasectomy for birth control

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Urethra

conveys urine & semen to tip of penis

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Seminal Vesicles

Secretes fluid to form semen produces 60% of fluid in semen yellowish thick fluid

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Prostate Gland

Secretes fluid to form semen 33% of semen volume Site for prostate cancer

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Cowper’s Glands

Secretes fluid to form semen produce thick, clear mucus released prior to ejaculation

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Bladder

Urine storage

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Penis

External reproductive organ Erectile tissue becomes engorged with

blood during an erection. Blood flow is cut off trapping blood

causing penis to stiffen and become elongated.

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Semen mixture of sperm & secretions transport medium, nutrients, &

chemicals that protect & facilitate movement of sperm

2-6 ml released each ejaculation 50-100 million sperm in each ml

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Anatomy of the Female Reproductive System

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Ovaries

Houses eggs(ova). each month an adult woman will release

one mature egg called ovulation. Only 400-500 eggs of potential 700,000

are released during a lifetime. Produces female sex hormones.

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Fallopian Tubes

provide site where fertilization can occur little or no contact with ovary Transfers egg(ovum) Tubal ligation

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Uterus

Muscular pear shaped organ hollow, thick-walled organ that functions

to receive, retain, & nourish a fertilized egg and developing baby

Thickens if fertilized(zygote). Breaks down and sheds if not

fertilized(menstruation).

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Vagina

birth canal receives penis & semen during

intercourse

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External Genitalia labia majora: two elongated, hair-

covered fatty skin folds labia minora: two thin hair-free folds

covered with mucosa & sebaceous glands

Both are used for protection

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Bladder

Urine storage

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Cervix

Neck of the uterus and vagina Dialation

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Urethra

Urine exits

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Endometrium

Inner lining of the uterus Excessive shedding of the uterus is a

disease called endometriosis

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Eggs(ova)

Mature ovum Maturing ovum