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Across 3. from the time of one period to the next -"usually 28 days. 5. The ovasries begin to release one mature ovum each month. This process is called the. 10. are two small glands that produce sperm. 12. is the external reproductive organ composed of spongy tissue that contains many blood vessels. 13. is a male hormone that causes the testes to produce sperm. 14. is a small tube that extends from the bladder as well as from each vas dererns through the penis to the outside of the body.

Down 1. When a mature ovum is released from an ovary it moves in to one of a pair of tubes called. 2. can occur if sperm cells are present while the ovum is in the fallopian tube. 4. as a result of action of hormones the linigh breaks down and passes through the . 6. The mixture of the fluids form the seminal vesicles the prostate gland and cowpers glands with sperm forms. 7. is a condition in which a person is unable to reproduce. 8. are female sex glands that house the ova and produce female sex hormones. 9. is a small,muscular,pear-shaped organ, about the size of a fist. 11. protects sperm by keeping the testes at a temperature slighty below the normal body tempratureof 98.6 F (37 c).