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Name the secretion of mastocytes.
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- Give some characteristics of mastocytes.What finding will be common to a person whose Leydig cells have been destroyed and to a person whose Sertoli cells have been destroyed? What finding will not be common?What cells are responsible for the blood-testis barrier and what are some unique features of these cells?
- A 49-year-old woman has large uterine leiomyomata that have caused extensive vaginal bleeding that is perimenopausal, the physician recommends a hysterectomy to prevent further bleeding. The mother's health. Gets worse Which of the following responses by the physician is most appropriate? A) "How did a hysterectomy ruin your mother's health?" B) "A hysterectomy wouldn't ruin a person's health. What else was wrong with your mother?" C) "I'm sure her case was completely different from yours." D) "I'm sure there is an explanation for the problem your mother encountered." E) "Is your mother still living?"Discuss the effect an absence of interstitial cells would have on male fertility.:, State whether the following statements are True or False. If False rewrite the correct form of the statement by only changing the last word of the statement. (i) The alpha cells dfthe pancreas secrete insulin. (ii) Duplicated chromosomes remain attached at a point termed centrosome. (iii) The number of pairs ofautosomes in man is 22. (iv) Penicillin obtained from si fungus is an example of an antibody. (v) Plants that manufacture their own food are termed heterotrophs
- Both the epithelium of the vagina and the cervical glands of the uterus help prevent the invasion and spread of vaginal pathogens. Explain how each of these mechanisms works.Why is the blood-testis barrier necessary?The most useful serum marker for detecting recurrent disease after treatment of nonseminomatous testicular cancer is() A) Carcinoembryonic antigen(CEA) B) A-fetoprotein(AFP) C) Prostate-specific antigen(PSA) D) CA125 E) P53 oncogene