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Human reproduction covers the male and female reproductive organs, gamete formation, fertilization, implantation and hormonal regulation. The menstrual cycle includes ovarian and uterine changes controlled by pituitary and ovarian hormones, while sexually transmitted diseases are studied through their causes, transmission, symptoms, prevention and effects on fertility.
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- A. ACTH
- B. ICSH
- C. TRF
- D. MSH
Explanation: In males, luteinizing hormone (LH) is also known as interstitial cell stimulating hormone (ICSH).
Correct answer: ICSH- A. Vas deferens
- B. Malpighian tubule system
- C. Seminiferous tubules
- D. Ejaculatory duct
- E. Testicular Duct System
Explanation: In mammals production of testes occurs in the seminiferous tubules of the male testes.The male genitals include the testes, the ductus…
Correct answer: Seminiferous tubules- A. Fertilization occurs here
- B. Implantation occurs here
- C. The placenta is established here
- D. None of these
Explanation: The proximal part of the oviduct, also known as the infundibulum, is significant because it plays a crucial role in capturing the released…
Correct answer: Fertilization occurs here- A. Estrogen from placenta
- B. Oxytocin from maternal pituitary
- C. Oxytocin from foetal pituitary
- D. Relaxin from placenta
Explanation: Note: Parturition is induced by a complex neuroendocrine mechanism. The signals for parturition originate from the fully developed foetus…
Correct answer: Oxytocin from maternal pituitary- A. Cervix
- B. Fallopian tube
- C. External genitalia
- D. Vulva
Explanation: The cervix is the lower part of the uterus, which opens into the vagina.
Correct answer: Cervix- A. Decrease FSH, Decrease estrogen
- B. Increase FSH and Increase estrogen
- C. Decrease FSH and Increase LH
- D. Increase FSH and decrease LH
Explanation: The correct answer is C.Decrease in FSH and increase in estrogenThis is because the surge in luteinizing hormone (LH) that leads to…
Correct answer: Decrease FSH and Increase LH- A. Hypothalamus
- B. Ovary follicles
- C. Corpus luteum
- D. Pituitary gland
Explanation: The pituitary gland releases hormones like FSH and LH that stimulate the maturation of structures such as the follicles.
Correct answer: Pituitary gland- A. Lueal
- B. Follicular
- C. Ovulation
- D. Menstruation
Explanation: The correct answer is menstruation. During the menstrual phase, the lining of the uterus, known as the endometrium, degenerates and is…
Correct answer: Menstruation- A. Estrogen
- B. Progesterone
- C. Luteinising hormone
- D. Follicle stimulating hormone
Explanation: The correct answer is luteinising hormone (LH). LH is responsible for triggering ovulation, which is the release of the egg from the…
Correct answer: Luteinising hormone- A. Luteinizing hormone, progesterone
- B. Luteinizing hormone, Follicle Stimulating hormone
- C. Follicle stimulating hormone, progesterone
- D. Follicle stimulating hormone, luteinizing hormone
Explanation: X is a pituitary hormone that is secreted for ovulation to occur, so it's LH.
Correct answer: Luteinizing hormone, progesterone- A. FSH
- B. Estrogen
- C. LH
- D. Progesterone
Explanation: Leutinizing hormone (LH), the other reproductive pituitary hormone, aids in egg maturation and provides the hormonal trigger to cause…
Correct answer: LH- A. FSH
- B. LH
- C. GnRH
- D. Progesterone
Explanation: Hormone X shows LH. LH surges around the middle of the menstrual cycle, triggering ovulation.
Correct answer: LH- A. Estrogen
- B. Estrogen and progesterone
- C. Progesterone
- D. Oxytocin
- E. Prolactin
Explanation: Luteinizing hormone (LH) is a hormone produced by the pituitary gland that triggers ovulation in females.
Correct answer: Progesterone- A. Estrogen
- B. Estrogen and progesterone
- C. Progesterone
- D. Oxytocin
- E. Prolactin
Explanation: Follicle-stimulating hormone (FSH) stimulates the development of ovarian follicles, which contain the eggs.
Correct answer: Estrogen- A. Shivering
- B. Fever
- C. Bleeding
- D. Vomiting
- E. Headache
Explanation: Menstruation is the shedding of the endometrium, which results in bleeding from the uterus.
Correct answer: Bleeding116. Based on the peak levels of hormone X, on what day of the cycle is ovulation most likely to occur?
- A. Day 21
- B. Day 14
- C. Day 12
- D. Day 25
- E. Day 28
Explanation: Peak of LH hormone occurs at 14th day. So, the ovulation occurs at 14th day.
Correct answer: Day 14- A. Endometrium
- B. Perimetrium
- C. Corpus Luteum
- D. None of these
Explanation: After the release of the egg (ovulation) from a mature ovarian follicle, the remaining follicle cells undergo a transformation to form a…
Correct answer: Corpus Luteum- A. Follicle Stimulating hormone and Estrogen
- B. Luteinizing hormone and Estrogen
- C. Follicle Stimulating hormone and Luteinizing hormone
- D. Estrogen and Progesterone
Explanation: Four hormones are primarily active in the menstrual cycle namely; FSH: Secreted by the anterior pituitary gland.
Correct answer: Follicle Stimulating hormone and Luteinizing hormone- A. Corpus artesia
- B. Corpus callosum
- C. Corpus luteum
- D. Ccorpus albicans
Explanation: The corpus luteum is a temporary endocrine structure that develops from the remnants of the Graafian follicle after ovulation.
Correct answer: Corpus luteum- A. Progesterone
- B. Zona pellucida
- C. Follicle stimulating hormone
- D. Oxytocin
Explanation: Progesterone prepares the endometrium for the potential of pregnancy after ovulation.
Correct answer: Progesterone