1. Male Reproductive System

2. Male Reproductive System

4. Structure of a Sperm Cell
Head
Nucleus (Haploid)
Acrosome (contains enzymes that help sperm penetrate the egg
Mid-piece
mitochondria (for energy)
Tail for movement

5. Male Reproductive System
Scrotum – pouch that contains testes
Testes – produce sperm inside of seminiferous tubules. They also produce testosterone which is necessary for sperm production.
Epididymis – where sperm matures

6. Male Reproductive System (Continued)
Vas deferens – tube that carries sperm away from testes
Seminal vesicle, Prostate and Bulbourethral glands produce semen (fluid that sperm swims in)
Urethra – tube that carries semen outside body

7. Men and the Sexual Act
When a man is sexually excited, blood enters the penis and causes an erection
Ejaculation is the release of semen from the penis.
200 – 600 million sperm cells are released at one time.