In the testes: A. Leydig cells store, protect and nourish developing sperm. B. S
ID: 97118 • Letter: I
Question
In the testes: A. Leydig cells store, protect and nourish developing sperm. B. Serotoli cells secrete testosterone. C. Tight junctions exist to create a blood- D. More than one of the statements above is true. E. All of the above are true. Which of the following is a function of testosterone: A. Regulation of the rate of spermatogenesis B. Initiates spermatogenesis C. Sperm maturation D. Protein catabolism E. All of the above are true In order of average DURATION, from shortest to longest, which of the following is the correct ranking of the female reproductive phases: A. Menstruation, Preovulation, Ovulation, Postovulation B. Ovulation, Menstruation, Preovulation, Postovulation C. Ovulation, Preovulation, Menstruation, Preovulation, D. Ovulation, Postovulation, Menstruation, Preovulation E. None of the above are true The areola of the breast contains modified sebaceous glands. A. True B. False At ovulation, a secondary oocyte is released swept first into c A. Folds of the ovarian ligament B. An infundibulum C. A uterine tube D. The cervix E. The uterus Fertilization usually occurs in the: A. Vagina B. Uterine tubes C. Uterus D. Folds of the ovarian ligament E. InfundibulumExplanation / Answer
58) ANSWER C
Interstitial Cells are also called as Cells of Leydig, present in between the seminiferous tubules within the testes, They are responsible for secreting testosterone. so, the option A is wrong
A Sertoli cell is a 'nurse' cell of the testes which is part of a seminiferous tubule and is activated by follicle-stimulating hormone, and has FSH-receptor on its membranes. Its main function is to nurture the developing sperm cells through the stages of spermatogenesis. Because of this, it has also been called the "mother cell." it will not secrete testosterone. so, the option B is wrong.
Blood-testis barrier (BTB) is one of the tightest blood-tissue barriers between the blood vessels and the seminiferous tubules of the testes. It divides the seminiferous epithelium into the basal and the apical compartments. so, the option C only correct option
59) C, SPERM MATURATION IS THE FUNCTION OF TESTOSTERONE
60) E, NONE OF THE ABOVE ARE TRUE
Menstruation is also called as menstrual cycle, its duration is around 28 days in a healthy female individual. it consits of preovulation, ovulation and post ovulation periods. so, the Menstruation is having the longest duration, because its a combination of preovulation, ovulation and post ovulation. in the options Menstruation should be last.
61) TRUE, Areolar glands or Glands of Montgomery are sebaceous glands in the areola surrounding the nipple. The glands make oily secretions (lipoid fluid) to keep the areola and the nipple lubricated and protected. Volatile compounds in these secretions may also serve as an olfactory stimulus for newborn appetite
62) C, A UTERINE TUBE
63) B, UTERINE TUBES