front 1 ![]() Which of the following is housed within the spermatic cord? | back 1 testicular arteries and veins |
front 2 ![]() Which of the following is the site where sperm are stored until they are ejaculated? | back 2 tail of the epididymis |
front 3 ![]() Which cells produce androgens such as testosterone? | back 3 interstitial endocrine (Leydig) cells |
front 4 ![]() Which of these male accessory ducts transports both sperm and urine? | back 4 Urethra |
front 5 ![]() Which portion of the penis is removed through a procedure known as circumcision? | back 5 prepuce (foreskin) |
front 6 ![]() During vasectomy, what accessory duct is cut as a form of birth control? | back 6 ductus (vas) deferens |
front 7 Sperm is produced in the __________ of the testes. | back 7 seminiferous tubules |
front 8 Sperm are stored in the __________. | back 8 epididymis |
front 9 Which of the following does NOT add substances to seminal fluid? | back 9 urethra |
front 10 Viable sperm production is optimal at the body's core temperature. | back 10 FALSE |
front 11 The number of chromosomes in a human gamete is __________; this is referred to as the __________ chromosome number. | back 11 23; haploid |
front 12 Genetic variation of individual chromosomes occurs during __________. | back 12 prophase I |
front 13 Enzymes that allow sperm to penetrate the egg are located in the __________ of the sperm cell. | back 13 Acrosome |
front 14 The release of __________ encourages interstitial endocrine cells to release __________. | back 14 luteinizing hormone; testosterone |
front 15 ![]() What part of the female duct system is the usual site of fertilization of the ovulated oocyte? | back 15 uterine (fallopian) tube (oviduct) |
front 16 ![]() Which layer of the uterine wall is made of smooth muscle? | back 16 Myometrium |
front 17 ![]() Which specific layer of the uterus is shed during menstruation, approximately every 28 days? | back 17 stratum functionalis of the endometrium |
front 18 ![]() Specifically, what encloses the vestibule which houses the openings of the urethra and vagina? | back 18 labia minora |
front 19 ![]() Which structure of the female's external genitalia has erectile tissue like the penis? | back 19 Clitoris |
front 20 ![]() What are the two fatty, hair-covered skin folds that run posteriorly from the mons pubis? | back 20 labia majora |
front 21 ![]() What part of the breast produces milk? | back 21 alveoli |
front 22 ![]() The mammary glands belong to which of the following systems? | back 22 integumentary system |
front 23 ![]() What is the pigmented ring of skin situated slightly below the center of each breast? | back 23 Areola |
front 24 The __________ connects the uterus to the vagina. | back 24 Cervix |
front 25 The __________, a layer of the endometrium, is shed during each menstruation and is then regenerated by the __________. | back 25 stratum functionalis; stratum basalis |
front 26 Which of the following is FALSE regarding the vagina of an adult female? | back 26 The pH of the adult vagina is alkaline. |
front 27 ![]() Which of the following cells is released during ovulation? | back 27 secondary oocyte |
front 28 ![]() Why CAN'T polar bodies be fertilized? | back 28 Polar bodies lack nutrient-containing cytoplasm. |
front 29 ![]() How many functional gametes are produced by oogenesis? | back 29 one functional gamete |
front 30 ![]() What event occurs during the proliferative phase? | back 30 ovulation |
front 31 ![]() During what phase of the female's uterine (menstrual) cycle is the uterine lining shed? | back 31 menstrual phase |
front 32 ![]() What hormone promotes ovulation? | back 32 luteinizing hormone (LH) |
front 33 A surge in __________ directly triggers ovulation. | back 33 luteinizing hormone (LH) |
front 34 During the secretory phase of the uterine cycle __________. | back 34 the endometrium prepares for implantation |
front 35 Which of the following is an effect of estrogen in females? | back 35 promotes oogenesis |
front 36 Which of the following is considered a primary sex organ in females? | back 36 Ovary |
front 37 ![]() Once sperm are deposited into the vagina, sperm motility must be enhanced and they must be prepared to release hydrolytic enzymes from their acrosomes. What is this process called? | back 37 capacitation |
front 38 What is the event that results when the maternal and paternal chromosomes combine? | back 38 fertilization |
front 39 The fertilized egg is known as the | back 39 zygote |
front 40 Sperm freshly deposited in the female vagina are incapable of fertilizing an egg. What must happen first? | back 40 Capacitation |
front 41 ![]() Which of the following implants in the mucosa of the endometrium? | back 41 blastocyst |
front 42 ![]() What is the 16-cell stage known as? | back 42 Morula |
front 43 ![]() How much time passes after fertilization until implantation occurs? | back 43 7 days |
front 44 ![]() What releases human chorionic gonadotropin (hCG)? | back 44 ? |
front 45 ![]() What membrane does the trophoblast form after implantation? | back 45 chorion |
front 46 ![]() What is the function of the placenta? | back 46 The placenta functions as a nutritive, respiratory, excretory, and endocrine organ for the developing embryo. |
front 47 Which of the following is the correct sequence of development from zygote to embryo? | back 47 cleavage, morula, blastocyst, gastrula |
front 48 What structure(s) ultimately form(s) the placenta? | back 48 decidua basalis and chorionic villi |
front 49 ![]() What does the hormone relaxin promote? | back 49 Relaxin promotes the relaxation, widening, and increased flexibility of the pelvic ligaments and pubic symphysis. |
front 50 While human chorionic gonadotropin levels spike and sharply decline to reach a low value by four months, estrogen and progesterone levels steadily increase over the course of the pregnancy. | back 50 TRUE |
front 51 The sole responsibility of the placenta is to supply the fetus with oxygen and nutrients. | back 51 FALSE |
front 52 ![]() What role does oxytocin play in promoting labor? | back 52 Oxytocin stimulates the uterus to contract. |
front 53 ![]() Which of the following serves as the trigger to begin the vigorous, rhythmic contractions of true labor? | back 53 prostaglandins |
front 54 ![]() During pregnancy, which hormone is responsible for stimulating maturation of the breast for lactation? | back 54 human placental lactogen (hPL) |
front 55 __________ extends from the last menstrual period until birth, which is approximately 280 days. | back 55 A gestation period |