The Male Reproduction

System

Internal and External Organs

InternalGlands & Ducts-storage

Nourish

Transport sperm

ExternalProduce

Store

Release sperm

Sperm cell must unite with egg cell for reproduction to occur-FERTILIZATION

TESTES2 Major Functions

Produce testosteroneProduce sperm

Testes located in scrotumSac of skin outside bodyScrotum protects testes

Cold-shrinks hold in body heatWarm-larger to get rid of extra heat

Sperm need lower temp. to form & survive

EPIDIDYMISSperm move from testes to epididymis

Located on back of testicle-network of tubes

Function

Stores sperm for several weeks until mature

4-6 weeks for full maturity

VAS DEFERENSSperm travel through vas deferens &

combine with fluids from other sex glands

Extend from epididymis join at urethra

Urethra-tube passes through penis to outside of body

Carries both sperm & urine-valve prevents mixing

GLANDS & DUCTSSeminal Vesicles

Glands near the bladder

Fluid from S.V. makes up 60% of semenProvides source of energy keep sperm active

Cowper’s GlandLocated at base of penis

Clear fluid from C.G. 5% of semenLubricates urethra

Prostate GlandNear bladder at midline of body

Milky-white fluid 35% of semenProtects sperm through female reproductive tract

PENISExternal sex organ

2 parts

Shaft-main part of penis

Glans-tip of penis

Urine & semen exit body through urethra by action called ejaculation

Disorders of Male Reproductive System

Testicular Injury

Testicular or prostate Cancer

Undescended testes

Inguinal Hernia

Sterility

Enlarged Prostate Gland

Male Reproduction Diagram