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

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

3. 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.

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

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

6. 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

8. 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

9. 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 = million sperm
Nocturnal emission, “wet dreams”

10. 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