Lesson 20.2 – The Human Reproductive System | Crossword
Across
3. | a hollow organ of the female reproductive system that is lined with endometrial tissue and which houses and nurtures a developing fetus |
5. | a long, whip-like structure on the sperm that propels the sperm through liquid |
8. | an organ filled with erectile tissue and located above the vaginal opening; swells during sexual excitement |
11. | a male reproductive gland that secretes fluid to mix with sperm and create semen |
12. | a structure that connects the ovaries to the uterus and guides ova out of the ovaries; uterine tube |
14. | spongy tissue contained in the penis and clitoris that fills with blood during sexual excitement |
15. | the end of a woman’s reproductive years, when her ovaries stop releasing ova |
Down
1. | a girl’s first menstrual cycle, which typically occurs between 10 and 15 years of age |
2. | a tube in the male reproductive system that carries sperm from the testes to the penis |
4. | a process by which muscular contractions expel semen through the urethral opening in the penis |
6. | a female reproductive organ that contains ova and produces the hormones estrogen and progesterone |
7. | the release of an ovum from one of the follicles in the ovaries |
9. | a substance secreted during ejaculation, which contains sperm and other fluid |
10. | a tube-like structure that extends from the external vaginal opening to the cervix, which leads into the uterus |
13. | male reproductive organs that produce sperm and the hormone testosterone |