Campbell Essential Biology with Physiology (6th Edition)
6th Edition
ISBN: 9780134711751
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece
Publisher: PEARSON
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Chapter 26, Problem 15PS
Summary Introduction
To explain: The most logical things to test for male infertility patients as per male reproductive system.
Concept introduction: The male infertility depends upon the problem of quality and quantity of the male sperm. Infections in the male reproductive organ, lower sperm count, and infertile sperm production causes infertility in males. Above all, the male infertility refers to the disability of a male to cause pregnancy in a fertile female.
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Chapter 26 Solutions
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- A pregnant woman visits a doctor to determine the sex of her child. The doctor refused to perform the test. Why is she being denied?arrow_forwardOne of the common unfortunate consequences of a vasectomy is that the proximal ends of the ductus deferens rupture and spermatozoa are exposed to the immune system. The person with the testes then produces antibodies against their own sperm. This has consequences for the effectiveness of a vasectomy reversal. In the situation described above, why are the spermatozoa considered foreign even though they are being produced within the person’s own seminiferous tubules? This immune response is not normal, and so describe how the testes’ structure prevents this immune reaction from occurring.arrow_forwardWhy is it important for people to know infertility?arrow_forward
- How do tubal ligations and vasectomies prevent further pregnancies? Select one: a. The corpus luteum and the epididymis are suppressed using a chemical swab. The fertilized egg could no longer implant in the endometrium. b. The Fallopian tubes and vas deferens are cut and tied off, thereby preventing the movement of the eggs and sperm. c. The Fallopian tubes and the vas deferens are cut. Eggs and sperm can no longer be produced. d. The Fallopian tube and vas deferens are cut and tied off, thereby reducing needed reproductive hormone levels.arrow_forwardThe average sperm count in males is now lower than it was several decades ago. The reasons for the lower sperm count usually seen today are not known. What data might be helpful in order to formulate a testable hypothesis?arrow_forwardIn the process of in vitro fertilization, mature eggs are removed from the ovaries by a process called ?: 1) endoscopy 2) laparoscopy 3) microscopy 4) enthalpy ovaroscopyarrow_forward
- The mother of a 2-month-old infant brings the child to the clinic for a well-baby check. She is concerned because she feels only one testis in the scrotal sac. Which of the following statements about the undescended testis is the most accurate? A. Normally, the testes are descended by birth. B. The infant will likely require surgical intervention. C. The infant probably has only one testis. D. Normally, the testes descend by one year of age.arrow_forwardIdentify the structure that supports the development of sperm cells. Select one: a. D, which is the Sertoli cell b. A, which is the spermatocyte c. C, which is the sperm cell d. B, which is the interstitial cellarrow_forwardDescribe the advantages and disadvantages of the external location of testes? Please make the answer kind of shortarrow_forward
- Endometriosis is a disorder in which endometrial cells implant and proliferate outside of the uterus—in the uterine tubes, on the ovaries, or even in the pelvic cavity. Offer a theory as to why endometriosis increases a woman’s risk of infertility. Your answer:arrow_forwardWrite a summary of the whole male reproductive system? words should be not more than 150. use at your own wordsarrow_forwardThe order of ducts in the male genital system: Select one: O a. Tubuli recti- Rete testis- Vasa efferentia- Ejacutatory duct b. Tubuli recti- Rete testis- Vasa efferentia- epididymis c. Rete testis- Tubuli recti- Vasa efferentia- epididymis d. Vasa efferentia- Ejacutatory duct- Epididymis O The connective tissue layer of a mucous membrane is named:arrow_forward
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