MALE REPRODUCTIVE SYSTEM NOTES

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Presentation transcript:

MALE REPRODUCTIVE SYSTEM NOTES

REPRODUCTION Process by which new individuals of a species are produced

Produce specialized reproductive cells called gametes: ova (ovum) - eggs sperm (spermatozoa)

FERTILIZATION Fusion of egg and sperm produce a cell called a zygote

PRIMARY SEX ORGANS Gonads ovaries in the female testes in the male

ACCESSORY SEX ORGANS Internal and external ducts (transport and store gametes) Produce materials that support gametes

MALE REPRODUCTIVE TRACT Male gonads: testes/testicles Scrotum – sac that contains the testes regulates temperature of testes

TESTES Seminiferous tubules –sperm cells are made (contains 1 to 4) Interstitial cells produce testosterone – male sex hormone

SPERM STRUCTURE Made up of: Head – contains DNA Acrosome – contains enzymes to penetrate egg

Midpiece – contains mitochondria for energy Tail – flagellum – propels sperm

SPERMATOGENESIS production of sperm takes about 65-70 days About 300 million sperm mature each day

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