Male Reproductive System

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Presentation transcript:

Male Reproductive System Functions of the Male Reproductive System Produce Sperm Transport sperm into the body of the female Produce male sex hormone testosterone

External Structures Penis Incase urethra Scrotum Incase testes Control temperature of testes

Internal Structures Testes Make Sperm 50,000 sperm every minute Produce the male sex hormone testosterone Testosterone is necessary for sperm production and development of the male sex characteristics.

Internal Structures Epididymis Sperm are stored and mature here Vas Deferens Tubes that lead to the urethra Sperm travel through here

Internal Structures Continued Seminal Vesicle Supplies fluid to sperm Nourishes sperm Prostate Gland Supplies fluid to protect the sperm

Internal Structures Continued Cowper’s Gland Supplies fluid to sperm to help with mobility Urethra Sperm travel through here and out the end of the penis Urine flows through here and out the end of the penis

Other terms Erection Sexual excitement engorges penis with blood Causes erection Sperm Structure Composed of a head and tail Head contains genetic information XY chromosomes, 23 chromosomes

Other terms Continued Ejaculation The process by which semen leaves the male’s body Contractions occur around the urethra and base of the penis Contractions move sperm out of body 1 ejaculation = 40-400 million sperm Nocturnal emission, “wet dreams”

Vocabulary Words Continued Circumcision Optional procedure Fold of skin called foreskin is cut around the tip of the penis and removed Occurs when male is 2-8 days old Uncircumcised Must wash beneath foreskin to prevent infection

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