Lab 8: Reproductive and Endocrine Physiology

Bottle of HCG5 and syringe.

Chapter 9

This week in lab, students begin looking at reproductive physiology. Students look at simulated experiments discussing the importance of injected hormones such as testosterone, thyroxine, and cortisol, and their effects on the reproductive organs of rats.

We also discuss various types of birth control including: hormonal, barrier, rhythm/natural, and surgical.

Informational fliers on The Shot (injection), Condom (Male) and Implants.

In order to observe the effects of these hormonal changes, students analyze "rat" cards, control "rats" and "rats" with added hormones. After careful observation of the differences between the rats, students then turn to examining the human hormonal feedback system in females. Following that students turn to endocrinology in general, examining the relationship between the hypothalamus and pituitary gland as well as the hormonal response to stress. Finally, each group will investigate one common form of birth control before presenting their findings to the rest of the lab.

Computer screen with diagram on rat with different glands listed to the right.

Topics to Review Before Lab:

  • Sex differentiation (hormonal)
  • Sex hormones feedback system
  • Male and female anatomy
  • Spermatogenesis
  • Oogenesis
  • Follicle development
  • Hormonal control of the ovarian cycle
  • Uterine and ovarian phases