Name______Date______Mr. Oggeri Period______Male Notes

The . The testes are located in an external sac called the ______. . The is located outside the body cavity, where it is between 1 and 3 degrees ______than normal body temperature. . The lower temperature helps development.

Sperm Formation . ______forms sperm . Sperm forms in testes . Scrotum keeps cooler than rest . is sperm plus protecting ______. Semen leaves testes through the ______(sperm ducts) to the before it exits. . A sperm cell consists of: . ______, which contains the nucleus . ______, which contains energy-releasing mitochondria . ______, which propels the cell forward

Testes . Within each testis are clusters of hundreds of tiny tubules called ______tubules. . The seminiferous tubules are tightly coiled and twisted together. . Sperm are produced in the seminiferous tubules. . Sperm produced in the seminiferous tubules move into the ______, where they mature and are stored.

Path of Sperm Travel . From the epididymus, sperm move into a tube called the ______, which extends up from the scrotum into the abdominal cavity. . This merges with the ______, the tube that leads to the outside of the body through the ______

Accessory . The , , and bulbourethral gland . Glands lining the ______tract produce ______fluid. . Seminal fluid ______sperm and protects them from the acidity of the female reproductive tract. . The combination of sperm and seminal fluid is called semen.

Secondary Sexual Characteristics - Male . Produced by ______. Deeper voice . Chest and facial hair . Lengthen bones . Increased size of testes for sperm production