CHAPTER 12 REPRODUCTION MCQ (Please select the single best answer) A1型题 1.If a young woman has high plasma levels of T3,cortisol,and renin activity but her blood pressure is only slightly elevated and she has no symptoms or signs of thyrotoxicosis or Cushing's syndrome,the most likely explanation is that A.she has been treated with TSH and ACTH B.she has been treated with T3 and cortisol C.she is in the third trimester of pregnancy D.she has an adrenocortical tumor E.she has been subjected to chronic stress [答案]C 2. Full development and function of the seminiferous tubules require A. somatostatin B.LH C.oxytocin D.FSH E.androgens and FSH [答案]E 3.In humans,fertilization usually occurs in the A.vagina B.cervix C.uterine cavity
CHAPTER 12 REPRODUCTION MCQ (Please select the single best answer) A1 型题 1. If a young woman has high plasma levels of T3, cortisol, and renin activity but her blood pressure is only slightly elevated and she has no symptoms or signs of thyrotoxicosis or Cushing’s syndrome, the most likely explanation is that A. she has been treated with TSH and ACTH B. she has been treated with T3 and cortisol C. she is in the third trimester of pregnancy D. she has an adrenocortical tumor E. she has been subjected to chronic stress [答案] C 2. Full development and function of the seminiferous tubules require A. somatostatin B. LH C. oxytocin D. FSH E. androgens and FSH [答案] E 3. In humans, fertilization usually occurs in the A. vagina B. cervix C. uterine cavity
D.uterine tubes E.abdominal cavity [答案]D 4.In human males,testosterone is produced mainly by the A.Leydig cells B.Sertoli cells C.seminiferous tubules D.epididymis E.vas deferens [答案]A 5.Home-use kits for determining a woman's fertile period depend on the detection of one hormone in the urine.This hormone is A.FSH B. progesterone C.estradiol D.hCG E.LH [答案]E 6.Puberty does not normally occur in humans under the age of 8 years,because before that age A.the tissues are unresponsive to gonadal steroids B.the ovaries and testes are unresponsive to gonadotropins C.the pituitary cannot manufacture adequate amounts of gonadotropins
D. uterine tubes E. abdominal cavity [答案] D 4. In human males, testosterone is produced mainly by the A. Leydig cells B. Sertoli cells C. seminiferous tubules D. epididymis E. vas deferens [答案] A 5. Home-use kits for determining a woman’s fertile period depend on the detection of one hormone in the urine. This hormone is A. FSH B. progesterone C. estradiol D. hCG E. LH [答案] E 6. Puberty does not normally occur in humans under the age of 8 years, because before that age A. the tissues are unresponsive to gonadal steroids B. the ovaries and testes are unresponsive to gonadotropins C. the pituitary cannot manufacture adequate amounts of gonadotropins
D.the brain secretes a substance that inhibits the responsiveness of the gonads to gonadotropins E.the hypothalamus fails to secrete GnRH in a pulsatile fashion [答案]E 7.Castration cells are found in the A.uterus B.prostate C.placenta D.anterior pituitary E.hypothalamus [答案]D 8.Decidual cells are found in the A.uterus B. prostate C.placenta D.anterior pituitary E.hypothalamus [答案]A 9.Which of the following is not a steroid? A.17 a-Hydroxyprogesterone B.Estrone C.Relaxin D.Pregnenolone E.Etiocholanolone
D. the brain secretes a substance that inhibits the responsiveness of the gonads to gonadotropins E. the hypothalamus fails to secrete GnRH in a pulsatile fashion [答案] E 7. Castration cells are found in the A. uterus B. prostate C. placenta D. anterior pituitary E. hypothalamus [答案] D 8. Decidual cells are found in the A. uterus B. prostate C. placenta D. anterior pituitary E. hypothalamus [答案] A 9. Which of the following is not a steroid? A. 17α-Hydroxyprogesterone B. Estrone C. Relaxin D. Pregnenolone E. Etiocholanolone
[答案]C 10. Which of the following is not a male secondary sexual characteristic? A.A beard B.An increased incidence of'acne C.A deep voice D.Increased fat in the buttocks E.An enlarged penis [答案]D 11.Sildenafil (Viagra)causes transient difficulty with color perception because A.It dilates the blood vessels in the retina B.It constricts the blood vessels in the retina C.Related isoforms of guanylyl cyclase are found in the retina and in the penis D.Related isoforms of phosphodiesterase are found in the retina and in the penis E.The retina and the penis arise from the same embryonic structure [答案]D 12.Which of the following is not involved in causing the onset of labor? A.ACTH in the fetus B.ACTH in the mother C.Prostaglandins D.0xytocin E.Placental rennin
[答案] C 10. Which of the following is not a male secondary sexual characteristic? A. A beard B. An increased incidence of' acne C. A deep voice D. Increased fat in the buttocks E. An enlarged penis [答案] D 11. Sildenafil (Viagra) causes transient difficulty with color perception because A. It dilates the blood vessels in the retina B. It constricts the blood vessels in the retina C. Related isoforms of guanylyl cyclase are found in the retina and in the penis D. Related isoforms of phosphodiesterase are found in the retina and in the penis E. The retina and the penis arise from the same embryonic structure [答案] D 12. Which of the following is not involved in causing the onset of labor? A. ACTH in the fetus B. ACTH in the mother C. Prostaglandins D. Oxytocin E. Placental rennin
[答案]E
[答案] E