Nokea
What is an organelle that helps the sperm to penetrate the ovum?
- A. Acrosome
- B. Zona pellucida
- C. Megalis
- D. None of the above
Correct Answer: A
Rationale: The correct answer is Acrosome. The acrosome is an organelle located at the head of a sperm cell and contains enzymes that aid in the penetration of the ovum during fertilization. The Zona pellucida is a glycoprotein membrane surrounding the ovum, not an organelle. Megalis is not a relevant organelle in this context. Therefore, the correct choice is A, Acrosome.
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What is a Carneous Mole defined as?
- A. Occurs when fluids drain from the blood mole, leaving a fresh firm mass.
- B. Occurs when the ovum dies and is expelled.
- C. Occurs when the fetus dies, and the membranes rupture.
- D. Occurs when the fetus survives after a failed abortion attempt.
Correct Answer: A
Rationale: A Carneous Mole is defined as when fluids drain from the blood mole, leaving a fresh firm mass. This process leads to the formation of a solid mass resembling tissue. Choice B is incorrect as it describes a different concept known as a missed abortion, where the ovum dies and is expelled. Choice C is incorrect as it describes a situation related to fetal demise and membrane rupture, not specifically the formation of a Carneous Mole. Choice D is incorrect as it refers to a scenario where the fetus survives after a failed abortion attempt, which is distinct from the definition of a Carneous Mole.
At 16 weeks of pregnancy, the breast changes include:
- A. Montgomery's tubercles are prominent.
- B. Darkening of the nipple.
- C. Prickling, tingling sensation.
- D. Colostrum can be expressed.
Correct Answer: C
Rationale: At 16 weeks of pregnancy, the sensation of prickling and tingling in the breasts is common due to hormonal changes. Montgomery's tubercles becoming prominent is more characteristic of early pregnancy, typically around the first trimester. Darkening of the nipple, known as areola darkening, can occur but is more commonly observed later in pregnancy. The expression of colostrum, the first milk produced by the mammary glands, usually happens closer to the end of pregnancy or after childbirth, not typically at 16 weeks.
Lactational Amenorrhoea Method (LAM) is best for:
- A. Clients who do not wish to have any more children
- B. Clients with a baby less than 6 months postpartum
- C. Clients who want to wait before having a first or another child
- D. Clients with several sexual partners
Correct Answer: B
Rationale: The correct answer is B: Clients with a baby less than 6 months postpartum. Lactational Amenorrhoea Method (LAM) is a highly effective temporary family planning method that is recommended for women who have recently given birth and are breastfeeding. LAM works best when the baby is less than 6 months old, the mother is exclusively breastfeeding, and her menstrual periods have not resumed. Choices A, C, and D are incorrect because LAM is specifically designed for postpartum women with infants less than 6 months old, focusing on the lactational infertility that occurs during exclusive breastfeeding.
What is the most common site for an ectopic pregnancy?
- A. Isthmus
- B. Ampulla
- C. Interstitial
- D. Infundibulum
Correct Answer: C
Rationale: The correct answer is C, Interstitial. An ectopic pregnancy most commonly occurs in the interstitial portion of the fallopian tube. This is because the interstitial part is narrow and not suitable for the growing embryo, leading to implantation outside the uterus. Choices A, B, and D are incorrect because although ectopic pregnancies can occur in various locations, the interstitial portion of the fallopian tube is the most frequent site for such pregnancies.
Which of the following structures is responsible for the production of sperm?
- A. Epididymis
- B. Seminal vesicles
- C. Testes
- D. Prostate gland
Correct Answer: C
Rationale: The testes are the male reproductive organs responsible for the production of sperm through a process called spermatogenesis. The epididymis is a structure where sperm mature and are stored temporarily. Seminal vesicles produce a significant portion of the fluid that ultimately becomes semen, but they do not produce sperm. The prostate gland contributes additional fluid to semen but does not produce sperm. Therefore, the correct answer is the testes.