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Name ________________________________________________ Date ___________________ Reproduction and Development Questions 1. What are the primary functions of the male reproductive system? To produce sperm and deposit them in the female reproductive tract. 2. How does the location of the scrotum affect sperm? The scrotum holds the testes outside the body at a temperature about 2 -4 degrees lower than body temperature. Sperm develop best at a lower temperature. 3. Where does meiosis occur in the male reproductive system? Testes Order the steps in the formation and transportation of sperm from 1 to 6. ______4______4. Mature sperm enter the vas deferens. ______2______5. Newly formed haploid sperm cells pass through a series of coiled ducts to the epididymis. ______6______6. Sperm leave the body via the urethra. ______3______7. Sperm mature in the epididymis. ______1______8. Cells lining tubules in the testes undergo meiosis. ______5______9. Sperm travel along the ejaculatory ducts and into the urethra. If the statement is true, write true. If it is not, rewrite the italicized part to make it true. 10. As is the case in human males, a woman ’s hypothalamus produces FSH and LH. False - Pituitary 11. FSH stimulates follicle development and the release of estrogen from the ovary. True 12. In females, luteinizing hormone (LH) is responsible for the development of the secondary sex characteristics. False - estrogen 13. Long before a woman is born, cells in her ovaries that are destined to become future eggs undergo several mitotic divisions . True – as the ovaries are developing they produce more oogonium cells through mitosis. After the ovaries are formed, the process stops and no more egg producing cells are made. fertilization Implantation zygote Blastocyst oviduct Label the diagram. Use these choices: ovary, implantation, blastocyst, ovulation, fertilization, uterus, zygote, vagina, oviduct. ovulation Ovary Uterus vagina Place each of the terms below under the correct reproductive system in the table. Then explain the role that each term plays in the reproductive system. bulbourethral gland follicle corpus luteum prostate gland semen vagina cervix epididymis Male System Function bulbourethral gland Semen seminal vesicle Produce nutrient rich seminal fluid and lubricant Combination of sperm and seminal fluid for fertilization Gland that secretes seminal fluid prostate gland Provides most of the fluid for semen and pH buffer corpus luteum epididymis Storage and maturation of sperm Pocket of skin that holds testes at a lower temperature Tube that carries sperm from epididymis to urethra vagina scrotum vas deferens oviduct scrotum seminal vesicle vas deferens Female System follicle Function cervix Lower end of uterus that controls movement into/out of vagina Tube between ovary and uterus that carries eggs and where fertilization occurs Cells of ruptured follicle produce progesterone after ovulation Birth canal, passage for secretions from uterus, accepts sperm oviduct Helps egg mature Use each of the terms below just once to complete the passage. amnion blastocyst chorion chorionic villi embryo placenta umbilical cord zygote implants oviduct Usually in the upper part of a(n) ____oviduct ____ an egg and one sperm unite to form a(n) __zygote _______________.This single cell divides repeatedly to form a(n) _blastocyst____________,which __implants___________in the uterine wall. Part of the blastocyst becomes the ____embryo______,which is surrounded by a fluid-filled, membranous sac called the ________amnion________. The embryo is connected to the wall of the uterus by its ________ umbilical cord________.The amniotic sac is enclosed by the _____chorion________,which later forms the _____ chorionic villi ________ Nutrients and oxygen from the mother and wastes from the embryo are exchanged at the _____placenta_______.