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
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- Outline the roles of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) in the ovarian cycle of a human female.Which of the following does not pertain to the apical germarium?A. contains the primary female germ cells/oogonia which divide mitoticallyB. contains prefollicular tissues which form the follicular epithelium of thevitellariumC. invested in an ovariole sheathD. region of the ovariole where the oocytes undergo vitelogenesisWhat statement best explains the role of progesterone in menstruation?a. Produces corpus luteumb. It prepares the uterus for menstruationc. It is a steroidal hormone that results in some significant endometrial changesd. Initiate this phase by the formation of the corpus luteumWhich of the following is/are NOT a function of progesterone and estrogen:a. Inhibits the production of LH and FSHb. Causes the hypothalamus to release gonadotropin releasing hormonec. Maintains the endometrium for pregnancyd. Causes the follicle to mature into a graafian follicle
- Which of these processes or phases in the monthly reproductive cycleof the human female occur at the same time?a. maximal LH secretion and menstruationb. early follicular development and the secretory phase of theuterusc. regression of the corpus luteum and an increase in ovarianprogesterone secretiond. ovulation and menstruatione. proliferative stage of the uterus and increased estrogen productionWhich of the following embryological events is involved in the formation of the ovarian follicles? a. Development of a genital tubercle in the cranial and the cloacal membrane b. Differentiation of the endoderm of the urogenital sinus c. Formation of longitudinal invaginations along the lateral aspect of the mesonephros d. Innervation of the ovary by neural crest cells e. Migration of the primordial germ cells from the yolk sacE B A В Identify the structure that secretes the hormone involved in the development of the secondary male sex characteristics and contributes to spermatogenesis. Select one: a. D, which is the Sertoli cell b. A, which is the spermatocyte O c. C, which is the sperm cell O d. B, which is the interstitial cell
- After fertilization, the successful development of a mature, full-termfetus depends ona. the release of human chorionic gonadotropin (hCG) by the developing placenta.b. the production of estrogen and progesterone by the placental tissues.c. maintenance of the corpus luteum for all 9 months.d. Both a and b are correct.e. All of these are correct.Which of the following does not describe the accessory glands of the female reproductive system? TheyA. are saclike expansions of the vaginal region. B. Are muscular and ectodermal in origin.C. usually open at the apical portion of the bursa copulatrix.D. creamy white in color and opens into the genital chamber. Spermatophores are specialized packets held together by glands thatA. play a role in influencing the permeability of the testicular wall.B. are used to transport sperms into the female reproductive tract.C. regulate the release of sperm cells.D. stimulate contraction of the genital ducts. The zone of the testicular follicle where the primary spermatocytes become secondary spermatocytes and spermatids during the first and second meiosisrespectively is the zone ofA. transformation.B. maturation and reduction.C. growth.D. germarium. A hormone which has been shown in some species to have an inhibitory effect on spermatogenesis isA. ecdysone.B. peptide hormone.C. juvenile hormone.D.…State the two histological components of the ovary. What are its functions? Explain in long explanation
- Development of normal female internal and external genitalia requiresa. Müllerian-inhibiting substance.b. expression of the SRY gene.c. insensitivity to circulating testosterone.d. complete absence of testosterone.e. absence of a Y chromosome.a. An ovary consists of numerous embedded in a layer called the immediately beneath the ovary's surface and abundantly supplied with b. follicles. c. At begin to develop within the و a follicle gradually approaches the surface of the ovary and bursts; the and fluid contents of the follicle are liberated onto the exterior of the ovary and carried in the by currents set up by the movements of cilia covering theAt the end of the uterine cycle, there is a significant drop in the level of LH, estrogen, and progesterone. This causes all of the following EXCEPT Select one: A. The maintenance of the corpus luteum to continue producing low levels of progesterone and estrogen. B. The start of menstruation, which breaks down the blood vessels and tissues formed during the follicular stage. C. Negative feedback loop to the pituitary to secrete more FSH and LH. D. An increase in smooth muscle contractions of the uterus.
