front 1 Site where sperm are stored until they are ejaculated? | back 1 Tail of epididymis |
front 2 Contained within the spermatic cord | back 2 testicular arteries and veins |
front 3 Sperm is produced in the _____. | back 3 seminiferous tubule |
front 4 The dartos and cremaster muscles are important to the integrity of the male reproductive system. What role do they play? | back 4 they regulate the temperature of the testes |
front 5 The cells thaat produce testosterone in the testis are called... | back 5 interstitial cells |
front 6 Which portion of the penis is removed during circumcision? | back 6 Prepuce (foreskin) |
front 7 Male acessory ducts transports both sperm cells and urine... | back 7 urethra |
front 8 Does NOT emply material into the are of the prostatic urethra... | back 8 bulbo-urethral gland |
front 9 The duct system of the male reproductive system does not include ... | back 9 corpus spongiosum |
front 10 What glands responsible for about 70% of the volume of semen... | back 10 the seminal glands |
front 11 Erection from the penis results from .... | back 11 a parasympathetic reflex |
front 12 Why doesn't semen enter the urinary bladder during ejaculation? | back 12 The smooth muscle sphincter at the base of the urinary bladder closes |
front 13 What is the function of meiosis? | back 13 to produce cells with half the chromosome number of the original spermatogonium or oogonium |
front 14 At what point during meiosis do homologous chromosomes pair up? | back 14 prophase I |
front 15 What cells remain at the basal lamina to continue the pool of dividing germ cells? | back 15 type A daughter cells |
front 16 Meiosis starts with a single diploid cell and produces | back 16 4 haploid cells |
front 17 A cell preparing to undergo meiosis duplicates its chromosomes during | back 17 interphase |
front 18 During prophase I of meiosis | back 18 homologous chromosomes stick togehter in pairs |
front 19 Correct order of events during meiosis is... | back 19 prophase I, metaphase I, anaphase I, telophase I, cytokinesis, meiosis II |
front 20 During meiosis, segments of nonsister chromatids can trade places. This recombinaiton of maternal and paternal genetic material is a key feature of meiosis. During what phase of meiosis does recombinaiton occur? | back 20 prophase I |
front 21 The number of chromosomes in a human gamate is _____; this is referred to as a _____ chromosome number. | back 21 23; haploid |
front 22 Does not occur during meiosis I | back 22 sister chromatids are separated from each other. |
front 23 During spermatogenesis | back 23 the acrosome migrates towards the anterior end of the spermatid becasue its hydrolytic enzymes will be needed for penetration when the sperm contacts the egg during fertilization. |
front 24 What reduces circulating blood levels of follicle-stimulating hormone (FSH) when sperm count is high? | back 24 inhibin |
front 25 If gamates were diploid like somatic cells, how many chromosomes would the zygote contain? | back 25 twice the number, and with every succeeding generation, the chromosome number would continue to double and normal development could not occur. |
front 26 What is the testicular target for follicle-stimulating hormone (FSH)? | back 26 Inhibin |
front 27 Which hormone promotes the formation of secondary sex characteristics such as the appearance of pubic, axillary, and facial hair; enhanced hair growth on the chest; and deepenin gof the voice? | back 27 Testosterone |
front 28 What directly interferes with sperm production? | back 28 interruption by sustentocytes' produciton of ABP |
front 29 The release of ______ encourages sustentocytes to release _____. | back 29 follicle-stimulating hormone; androgen-binding protein |
front 30 Function of testosterone | back 30 stimulate the male pattern of development, stimulate protein synthesis, contribute to male sexual behavior and spermatogenesis. |
front 31 Which hormone stimulates the release of anterior pituitary gonadotropins? | back 31 GnRH |
front 32 A boy who has not passed through puberty sustains an injury to his anterior pituitary such as that FSH is no longer released, but LH is normal. After he grow to maturity, one would expect that he would ..... | back 32 be sterile. |
front 33 What female sex hormones is most responsible for estrogenic effects? | back 33 Estradiol |
front 34 What part of the female system is the usual site for fertilization of the ovulated oocyte? | back 34 Uterine (fallopian) tube (oviduct) |
front 35 Which layer of the uterus is made of smooth muscle? | back 35 Myometrium |
front 36 The correct pathway of the egg after leaving the ovary and entering the uterine tube? | back 36 infundibulum, ampulla, isthmus, uterus |
front 37 The ______ is shed during each menstruation and is then regenerated by the ______. | back 37 Stratum functionalis; stratum basalis |
front 38 In cervical cancer, which cancer cells that cover the cervical tip are most likely to be abnormal? | back 38 Squamous epithelial cells |
front 39 The structures that receive the ovulated oocyte, providing a site for fertilization, are called the _______. | back 39 uterine tubes |
front 40 T/F The uterine endometrium has a functional layer that the embryo will implant into. | back 40 True |
front 41 T/F The narrow portion of the uterus near the cervix is the most typical site of fertilization. | back 41 False |
front 42 T/F The myometrium of the uterine contracts to expell the fetus during child brith. | back 42 True |
front 43 T/F The uterine's rhythmic, reverse peristalsis can propel sperm toward the egg. | back 43 True |
front 44 Which layer of the uterus is the site for implantation of a fertilized egg? | back 44 Stratum functionalis of the endometrium |
front 45 What part of the breast produces milk? | back 45 alveoli |
front 46 Cells released during ovulation... | back 46 secondary oocyte |
front 47 What is the main difference between oogenesis and spermatogenesis in terms of meiosis? | back 47 The number of functional gametes produced in different. |
front 48 T/F Oocytes complete meiosis II before they are fertilized. | back 48 False-females are born with primary oocytes that are stalled in prophase I until puberty. At the onset of puberty the overies begin oogenesis. During oogenesis 3 polar bodies and one functional gamate are produced. Oogenesis is achieved through meiosis. However, the ovulated secondary oocyte arrests in metaphase II and does not complete meiosis until it is fertilized. |
front 49 Why does only one egg, rather than four eggs, develop during oogenesis, given that spermatogenesis results in four sperm formed from one stem cell? | back 49 The unequal cytoplasmic division that results in one egg and three polar bodies ensures that a fertilized egg has ample nutrients for its journey to the uterus. |
front 50 A surge _____ directly triggers ovulation. | back 50 luteinizing hormone (LH) |
front 51 What is the site of FSH and LH stimulation after ovulation? | back 51 Corpus luteum |
front 52 What event coincides with the transition from the proliferative phase to the secretory phase? | back 52 Ovulation |
front 53 During what phase of the female's uterine cycle is the uterine lining shed? | back 53 Menstrual phase |
front 54 Oral contraceptive pill, contains estrogen and progesterone or a synthetic mimic of this hormone. The combination of these two hormones work because... | back 54 they mimic the activities of pregnancy and disrupt the ovarian cycle, preventing ovulation. |
front 55 Normally menstruation occurs when ______. | back 55 blood levels of estrogen and progesterone decrease. |
front 56 The uterine cycle... | back 56 if fertilization occurs, the corpus luteum is maintained by a hormone secreted by the developing embryo |
front 57 Hormonal events of the ovarian cycle | back 57 positive feedback on the pituitary causes a spike in LH release which triggers ovulation. |
front 58 Uterine cycle | back 58 -causes a decrease in the levels of ovarian hormones signal menstruation. -the corpus luteum is formed from the ruptured follicle after ovulation. -estrogen is secreted by the developing follicle in the follicular phase of the cycle. |
front 59 What is an effect of estrogen in females? | back 59 promotes oogenesis |