BIOL 251 Week 15 Unit Exam 5 Questions and Answers American Public

1. Question: How is a zygote transported to the uterus? 2. Question: Which part of a mature sperm contains enzymes which digest the coverings surrounding the ovulated oocyte? 3. Question: All of the following events occur during the embryonic period of growth EXCEPT development of ________ _. 4. Question: "False labor" or Braxton Hicks contractions are weak, irregular contractions of the myometrium triggered by 5. Question: Which hormone is responsible for mammary gland development at puberty? 6. Question: The inner cell mass of the trophoblast developments into the primary germ layers which are named the ______ , _______, and _______ _. 7. Question: The first stage of labor is marked by dilation of the uterine ______ _. 8. Question: The usual site of embryo implantation and growth is the __________. 9. Question: n the months preceding birth, the hormone which causes pelvic ligaments to become more flexible to enable widening of the pelvis during delivery is________ 10. Question: The placenta is formed by endometrial tissue of the uterine lining and the ______ _. 11. Question: n men during sexual arousal, penile erections occur due to Nitric Oxide being released from what structures? 12. Question: Which hypothalamic hormone contributes to the regulation of the male reproductive system? 13. Question: What is the purpose of Sertoli cells? 14. Question: What is the function of the epididymis? 15. In addition to testosterone being released into intratesticular secretion, it is also released into systemic circulation for the role of all but which one of the following? 16. Question: In the testes, sperm cells replicate and differentiate in the_______ _. 17. Question: In the testes, sperm cells replicate and differentiate in the_______ _. 18. Question: All of the following statements concerning oogenesis are correct EXCEPT: 19. Question: Without SRY expression, an embryo will develop: 20. Question: If the average length of a woman's ovarian cycle is 30 days, the average length of her uterine cycles is most likely ____ days. 21. Question: What are the female gonads called? 22. Question: After ovulation, the secondary oocyte is drawn from the peritoneal cavity into the uterine tube by_________.