Trace the anatomical routes to the external environment followed by a newly formed sperm and by an ovulated egg. Name all structures the gametes pass through on their journey.
1. Decide whether each of the following statements is true or false, and defend your answer.
(a) All testosterone is produced in the testes.
(b) Only males make androgens and only females make estrogens.
(c) Anabolic steroid use appears to be addictive, and withdrawal symptoms include psychological disturbances.
(d) High levels of estrogen in the late follicular phase help prepare the uterus for menstruation.
(e) Progesterone is the dominant hormone of the luteal phase of the ovarian cycle.
2. What is semen? What are its main components, and where are they produced?
3. List and give a specific example of the various methods of contraception. Which is/are most effective? Least effective?
