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- Figure 18.12 Which of the following statements about the male reproductive system is false? a. The vas deferens carries sperm from the testes to the seminal vesicles. b. The ejaculatory duct joins the urethra. c. Both the prostate and the bulbourethral glands produce components of the semen. d. The prostate gland is located in the testes.How Is Sex Determined? The absence of a Y chromosome in an early embryo causes the: a. embryonic testis to become an ovary b. Wolffian duct system to develop c. Mllerian duct system to degenerate d. indifferent gonad to become an ovary e. indifferent gonad to become a testisA human blastocyst normally implants in ................. a. an oviduct c. the uterus b. a seminiferous tubule d. the vagina
- What 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 follicleWhich 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 vitelogenesisMatch the reproductive organ to its function (job). eggs are made here A. endometrium vwhere the embryo implants to grow a placenta near the many blood vessels B. ovaries v stores sperm C. cervix v adds sugar to semen to power sperms' movement D. vagina Vsqueezes to hold baby in until birth E. uterus v makes sperm F seminiferous tubules contracts to move sperm through male reproductive tract G. prostate gland vwhere fetus develops and contracts to birth baby H. vas deferens v adds a basic/alkaline solution to semen to neutralize acidic vagina 1 epididymis passageway for penis during sexual intercourse, menstrual flow out of body and birth of baby J. seminal vesicles
- 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.…How do tubal ligations and vasectomies prevent further pregnancies? Select one: a. The corpus luteum and the epididymis are suppressed using a chemical swab. The fertilized egg could no longer implant in the endometrium. b. The Fallopian tubes and vas deferens are cut and tied off, thereby preventing the movement of the eggs and sperm. c. The Fallopian tubes and the vas deferens are cut. Eggs and sperm can no longer be produced. d. The Fallopian tube and vas deferens are cut and tied off, thereby reducing needed reproductive hormone levels.Which of the following is not a mechanism on how contraceptive pills work to prevent pregnancy? A. thinning the endometrium to prevent implantation B. inhibition of follicular development and suppression of ovulation C. progesterone inhibits the sperm from penetrating through the cervix and female upper tract by making the cervical mucus unfriendly D. stimulates the production of high testosterone levels
- Which of the following statements about spermatogenesis is true? Select one: A. The process starts after each ejaculation. B. Maturation of sperm takes place in the seminal vesicles. C. The process is initiated by primary spermatocytes. D. It is controlled by FSH and testosterone. E. The complete process takes about 28 days. O O OFoetus is the: I. Well developed embryo II. Developing embryo III. A zygote IV. Male gameteChoose the most accurate statement for spermatogenesis and oogenesis.Pilih kenyataan yang paling tepat mengenai spermatogenesis dan oogenesis.A. A sperm cell is larger than an ovum.B. Spermatogenesis occurs in the ovary, while oogenesis occurs in the testis.C. Spermatogenesis is a lifelong process, while oogenesis will stop atmenopause.D. A spermatogonium develops into secondary spermatocytes, while anoogonium develops into a secondary oocyte.