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- Although the male ejaculate contains hundreds of millions of sperm, ________. most do not reach the oocyte most are destroyed by the alkaline environment of the uterus it takes millions to penetrate the outer layers of the oocyte most are destroyed by cap a citationWhat would happen if the trophoblast did not secrete hCG upon implantation of the blastocyst? Tire cells would not continue to divide. Tire corpus luteum would continue to produce progesterone and estrogen. Menses would flush the blastocyst out of the uterus. Tire uterine mucosa would not envelop the blastocyst.What is the function of the epididymis? sperm maturation and storage produces the bulk of seminal fluid provides nitric oxide needed for erections spermatogenesis
- 2. Describe the steps of gonad determination in the male and the female beginning with the migration of the primordial germ cells to the genital ridge.1. Cite differences between grasshopper and rat testes. Cite the differences of spermatogenesis on grasshopper and rat.1. Trace the pathway of the sperm cell from the seminiferous tubules in the testes to outside the body.
- 25. On the diagram showing the sagittal section of the human testis, correctly identify all structures provided with leader lines. с d a b. nVa Sigur Got e f g h1. Describe the structure and function of the sperm cell 2. Identify the importance of testosterone in male reproductive function 3. 1. List the steps of oogenesis and spermatogenesis2. Fill in the missing terms in the following description of the menstrual cycle. The menstrual cycle is a _(1) day cycle of development of an egg in the _(3). (2) and changes in the in preparation for a possible pregnancy. All of this is controlled by changing hormone levels. One egg per month begins to develop due to the hormone _(4). being released from the (5) The ovary surrounding the developing egg then releases the hormone (6) _(8). that causes _(7) The releases the hormone (9) in large quantities and this causes _(10), the release of the egg. The empty follicle forms (11). that secretes the hormone a scar called the (12) that causes If the egg is fertilized on its way to the (13)_ that causes produces the hormone _(16)_ _(15)_ uterus, the _(14) If the egg is not fertilized, the lining of the uterus (endometrium) is shed as menstrual flow for about 5 days. 1. 28 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14.
- 9. Implantation of the conceptus at which site in the accompanying dia- gram of the female reproductive system is most likely to result in excessive, perhaps fatal, vaginal bleeding immediately prior to parturition? -B а. А b. В С. С d. D е. Е4. explain in details about menopause explain in details about fertility in men and women.4. Write in detail the process of spermatogenesis including cells involved and time length.
