label the following structures into the mammalian ovary. A. Tunica albuginea B. Primordial follicle C. Primary follicle D. Secondary follicle E. Graafian follicle F. Atretic follicle G. Primary oocyte H. Theca

a) Give a detailed account of the hormonal control of the human menstrual cycle. Briefly explain the similarities and differences between oogenesis and spermatogenesis. b)

ARRANGE THE FOLLOWING EVENTS IN CORRECT SEQUENCE from 1-13: Penetration of the zona pellucida Cortical reaction 1st cleavage Acrosomal membranes rupture, and release their enzyme contents Penetration of the corona radiata Depolarization of egg membranes Migration of cortical cytoplasm to form gray crescent Sperm attach loosely on the zona pellucida Zona reaction Oocyte completes meiotic division    ZP3 tenaciously binds acrosome-intact sperm Release of Ca+2 in egg cytoplasm from its bound state Amphimixis

Describe the development of an oocyte from primordial follicle to when it is released at ovulation. How do hormones contribute to this progression?  Describe the development of a spermatogonia to a spermatozoa.  How do hormones contribute to this progression?  What is the function of Sertoli and Leydig cells?

Cite differences between grasshopper and rat testis. Cite differences of spermatogenesis on grasshopper and rat.

If the ovum is not fertilized, the corpus luteum regresses, and the endometrium sloughs off to result in the first day of menstrual bleeding. The latter event would be duplicated, even if fertilization occurred, if receptors for which of the following hormones were occupied by an antagonist? A) Dehydroepiandrosterone B) Estradiol C ) Estriol D) Estrone E) Progesterone

Clomiphene Citrate is a fertility drug that stimulates hypothalamic secretion of Gonadotropin releasing Hormone (GnRH) in females and induces ovulation. Explain how increased GnRH with Clomiphene Citrate treatment would affect follicle maturation and ovulation in women (explain how increased GnRH would affect FSH, LH, Estrogen, and ovulation).

Match the germ layer on the right with its contribution to the tissues and organs of the embryo, on the left. v connective tissue stroma A. mesoderm v parenchymal cells, e.g., liver B. ectoderm C. mesoderm D. mesoderm E. endoderm F. endoderm vasculature v innervation v epithelium of enteric secretory duct tubes v epithelium of integumentary system G. ectoderm v elastic membrane