Anatomy & Physiology
5th Edition
ISBN: 9780321861580
Author: Marieb, Elaine N.
Publisher: Pearson College Div
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Chapter 26, Problem 7RQ
Which will occur as a result of nondescent of the testes? (a) male sex hormones will not be circulated in the body, (b) sperm will have no means of exit from the body, (c) inadequate blood supply will retard the development of the testes, (d) viable sperm will not be produced.
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Select the best answer or answers from the choices given: Which will occur as a result of nondescent of the testes? (a) male sex hormones will not be circulated in the body, (b) sperm will have no means of exit from the body, (c) inadequate blood supply will retard the development of the testes, (d) viable sperm will not be produced.
Gross Anatomy of the Human Male Reproductive System
a) List the two main functions of the testis.
b) Why are the testes located in the scrotum rather than inside the ventral body cavity?
c) An enlarged prostate is associated with a number of disorders, including prostatitis and prostate cancer. Describe the diagnostic exam used to detect an enlarged prostate.
The left testis of a newborn baby failed to descend into his scrotal sac.For some reason, the condition was not treated, and the testis remainedin that position until after puberty. Select the observation consistentwith the fate of the left testis after puberty.(1) normal testosterone secretion(2) no interstitial cells in the testis(3) no sustentacular cells in the testis(4) no spermatogonia in the testis(5) increased number of interstitial cells(6) normal LH secretiona. 1 b. 1,2,3,4 c. 1,2,3,6 d. 1,4,6 e. 4,6
Chapter 26 Solutions
Anatomy & Physiology
Ch. 26 - What are the two major functions of the testes?Ch. 26 - Which of the tubular structures shown in Figure...Ch. 26 - Muscle activity and the pampiniform venous plexus...Ch. 26 - What is the function of the erectile tissue of the...Ch. 26 - Name the organs of the male duct system in order,...Ch. 26 - What are two functions of the stereocilia on the...Ch. 26 - Which accessory organ of the male duct system runs...Ch. 26 - Adolph, a 68-year-old gentleman, has trouble...Ch. 26 - Prob. 9CYUCh. 26 - What is semen?
Ch. 26 - What is erection and which division of the ANS...Ch. 26 - Prob. 12CYUCh. 26 - What is the final outcome of meiosis?Ch. 26 - Describe the major structural and functional...Ch. 26 - Prob. 15CYUCh. 26 - What is the HPG axis?Ch. 26 - Prob. 17CYUCh. 26 - What are three secondary sex characteristics...Ch. 26 - Briefly, what are the internal genitalia of a...Ch. 26 - What two roles do the ovaries assume?Ch. 26 - Prob. 21CYUCh. 26 - Prob. 22CYUCh. 26 - Oocytes are ovulated into the peritoneal cavity...Ch. 26 - What portion of the female duct system is the...Ch. 26 - What is the female homologue of the bulbo-urethral...Ch. 26 - Cite similarities and differences between the...Ch. 26 - Developmentally, mammary glands are modifications...Ch. 26 - From what cell types does breast cancer usually...Ch. 26 - How do the haploid cells arising from oogenesis...Ch. 26 - How do identical twins differ developmentally from...Ch. 26 - What occurs in the luteal phase of the ovarian...Ch. 26 - Which hormone plays an important role in letting...Ch. 26 - Which hormone(s) prompt follicle growth? Which...Ch. 26 - Which gonadal hormone exerts positive feedback on...Ch. 26 - Which gonadal hormone causes the secondary sex...Ch. 26 - Prob. 36CYUCh. 26 - Which pathogen is most associated with cervical...Ch. 26 - What is the most common bacterial STI in the...Ch. 26 - The structures that draw an ovulated oocyte into...Ch. 26 - The usual site of embryo implantation is (a) the...Ch. 26 - The male homologue of the female clitoris is (a)...Ch. 26 - Which of the following is correct relative to...Ch. 26 - Secondary sex characteristics are (a) present in...Ch. 26 - Which of the following produces the male sex...Ch. 26 - Which will occur as a result of nondescent of the...Ch. 26 - The normal diploid number of human chromosomes is...Ch. 26 - Relative to differences between mitosis and...Ch. 26 - Match the key choices with the descriptive phrases...Ch. 26 - The menstrual cycle can be divided into three...Ch. 26 - Spermatozoa are to seminiferous tubules as oocytes...Ch. 26 - Which of the following does not add a secretion...Ch. 26 - The corpus luteum is formed at the site of (a)...Ch. 26 - The sex of a child is determined by (a) the sex...Ch. 26 - FSH is to estrogens as estrogens are to (a)...Ch. 26 - Prob. 17RQCh. 26 - Describe the major structural (and functional)...Ch. 26 - Oogenesis in the female results in one functional...Ch. 26 - Define menarche. What does it indicate?Ch. 26 - Trace the pathway of a sperm from the male testes...Ch. 26 - Prob. 22RQCh. 26 - Both the epithelium of the vagina and the cervical...Ch. 26 - Some anatomy students were saying that the...Ch. 26 - A man swam in a cold lake for an hour and then...Ch. 26 - Prob. 1CCSCh. 26 - Prob. 2CCSCh. 26 - Prob. 3CCSCh. 26 - Prob. 4CCS
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- Which hormones influence the development of sperm?arrow_forwardWhich will most likely occur if the testes do not descend into the scrotum before puberty? O A) The androgens will not be produced ○ B) Sperm will be produced but will not move into the male reproductive ducts OD) Sperm production in the seminiferous tubule cannot occur D) The blood-testis barrier will not be formed OE). All of the abovearrow_forwardWhy does the patient have light menstrual periods that have now stopped? Choose all the INCORRECT answer(s) from the options below a) There would be no development of follicles during the follicular phase of the ovarian cycle b) The endometrial lining will continue to increase in thickness c) The cells that produce FSH and LH are located in the hypothalamus and not in the pituitary gland. d) The levels of oestrogen would be higher than normal during the follicular phase of the ovarian cycle. e) The tumor would only affect the cells the produce the hormone that stimulates milk secretion.arrow_forward
- The uterine cycle can be divided into three continuous phases. Starting from the first day of the cycle, their order is (a) menstrual, proliferative, secretory; (b) menstrual, secretory, proliferative; (c) secretory, menstrual, proliferative; (d) proliferative, menstrual, secretory; (e) proliferative, secretory, menstrual.arrow_forwardPathway of sperm from the testis is (A) ejaculatory duct, epididymis, urethra (B) Urethra, epididymis, ejaculatory duct (C) Epididymis, urethra, ejaculatory duct (D) Eipdidymis, ejaculatory duct, urethraarrow_forwardGross Anatomy of the Human Male Reproductive System a) Name the two ducts that merge to form the ejaculatory duct. b) Describe the composition of semen, and name all structures contributing to its formation. c) Of what importance is the fact that seminal fluid is alkaline?arrow_forward
- What could be the reason why a woman only gets her period after puberty begins? A) Before puberty, high quantities of of corpus luteum are present B) Before puberty, GnRH levels may be too low. C) Before puberty, their endometrial lining is too thick.arrow_forwardIdentify True/False statements. Correct each false statement to makeit true.(a) Androgens are produced by Sertoli cells. (True/False)(b) Spermatozoa get nutrition from Sertoli cells. (True/False)(c) Leydig cells are found in ovary. (True/False)(d) Leydig cells synthesise androgens. (True/False)(e) Oogenesis takes place in corpus luteum. (True/False)(f) Menstrual cycle ceases during pregnancy. (True/False)(g) Presence or absence of hymen is not a reliable indicator of virginityor sexual experience. (True/False)arrow_forwardWhat occurs during the proliferative phase of the uterine cycle? (a) The basal layer of the endometrium thickens. (b) The primary follicles undergo mitosis. (c) The myometrium thickens. (d) The functional layer of the endometrium thickens. (e) The primary spermatocytes form.arrow_forward
- In men, LH (luteinizing hormone) stimulates ... a) ... spermatogenesis. b) ... the development of the sperm ducts. c) ... the production of testosterone.arrow_forward(c) Name two hormones produced by the ovaries in female. (d) Name the major cells in the gonads that produce the two hormones in (c) during follicular phase. during luteal phases. (e) Contraceptive pill contains the two hormones in (c). Briefly explain how they work.arrow_forwardThe hormones that stimulate the ovarian cycle are secreted by the _____________; the hormones that stimulate the uterine cycle are secreted by the _____________ (a) ovary / uterus, (b) pituitary gland / ovary, (c) follicle cells / functional layer, (d) interstitial cells / placenta, (e) ovary / pituitary gland.arrow_forward
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