the male reproduction system. internal and external organs internal glands & ducts-storage ...
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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