Anatomy

BIO 139

Summer II, 2014

Review Sheet

Exam #2

Chapter 27

1. GnRH is produced by the hypothalamus. It causes the production of the gonadotropins, Luteinizing Hormone and Follicle Stimulating Hormone, by the gonadotrophs of the pituitary. Testosterone in the male influences the the hypothalamus and pituitary. Estrogen in the female influences the hypothalamus and pituitary.

2. What are interstitial endocrinocytes (Leydig cells) and sustenocytes (Sertoli cells)?

3. LH and FSH control the production of spermatozoa.

a. LH causes the Leydig cells to produce testosterone.

b. FSH stimulates the Sertoli cells.

4. What are the steps of spermatogenesis?

5. Describe Prophase I of Meiosis I.

6. Trace the path of the spermatozoa from the testis to the secondary oocyte.

7. The maturing vesicular follicle contains thecal cells, granulosa cells and the oocyte.

8. LH and FSH control events in the ovary.

c. LH causes thecal cells to produce estrogen.

d. FSH stimulates the granulosa cells.

9. What are the steps of oogenesis?

10. LH. FSH, estrogen and progesterone influence events in the uterus.

e. Estrogen influences the follicular phase and the proliferative phase.

f. LH causes ovulation.

g. Progesterone influences the ovarian phase and the secretory phase.

Chapter 18

1. Trace the path of a red blood cell through the heart.

2. Trace the path of an electric impulse through the cardiac conduction system.

3. The right side of the heart receives blood from the systemic circuit and mobilizes blood into the pulmonary circuit.

4. The left side of the heart receives blood from the pulmonary circuit and mobilizes blood through the systemic circuit.

5. Describe the three layers of the wall of the heart.

6. Trace the branches of the right and left coronary artery.

7. Describe the structure and function of a cardiac muscle cell.

8. Describe the role of calcium in...