Nokea
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.
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What does Bidder's canal receive?
- A. Eggs
- B. Sperms
- C. Ammonia
- D. Oxygenated blood
Correct Answer: B
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Through which arteries does the blood supply to the external genitalia primarily occur?
- A. Femoral arteries
- B. Inguinal arteries
- C. Pudendal arteries
- D. Internal iliac arteries
Correct Answer: C
Rationale: The correct answer is C: Pudendal arteries. The pudendal arteries are responsible for supplying blood to the external genitalia. These arteries specifically provide blood flow to the perineum, including the external genitalia. Choice A, Femoral arteries, are not primarily responsible for supplying blood to the external genitalia. Choice B, Inguinal arteries, do not supply blood directly to the external genitalia. Choice D, Internal iliac arteries, are not the main suppliers of blood to the external genitalia.
What is a cord inserted to the very edge of the placenta known as?
- A. Battledore insertion
- B. Placenta velamentosa
- C. Placenta accreta
- D. Vasa Praevia
Correct Answer: A
Rationale: A cord inserted to the very edge of the placenta is known as battledore insertion. This occurs when the cord is attached to the fetal membranes at the placental margin rather than directly to the placental tissue. Placenta velamentosa refers to the condition where the umbilical cord inserts into the fetal membranes before it reaches the placenta. Placenta accreta is a condition where the placenta attaches too deeply into the uterine wall. Vasa Praevia is a condition where fetal blood vessels run across or near the internal cervical opening.
Discuss the anatomical/physiological changes in pregnancy under the following: Kidney/renal system
- A. Kidneys increase in size, pelvis dilates, ureters elongate and dilate, and the glomerular filtration rate increases.
- B. Kidneys decrease in size, and glomerular filtration rate decreases.
- C. There is no change in kidney size or ureter function, but the glomerular filtration rate decreases.
- D. Kidneys shrink, and ureters remain the same.
Correct Answer: A
Rationale: During pregnancy, the kidneys increase in size, the pelvis dilates, ureters elongate and dilate, and the glomerular filtration rate increases. This is due to the increased metabolic demands and hormonal changes during pregnancy. Choice B is incorrect as the kidneys do not decrease in size, and the glomerular filtration rate actually increases. Choice C is incorrect as there are changes in kidney size and ureter function during pregnancy. Choice D is incorrect as the kidneys do not shrink during pregnancy.
Which technique is used to detect HIV/AIDS?
- A. Northern blot and ELISA
- B. Immunoblot and ELISA
- C. Western blot and ELISA
- D. Southern blot and ELISA
Correct Answer: C
Rationale: The correct answer is C: Western blot and ELISA. Western blot and ELISA are commonly used techniques in the detection of HIV/AIDS. Western blot is used to confirm the presence of HIV antibodies in a patient's blood after an initial positive ELISA test. Northern blotting is a technique used for RNA analysis, not for detecting HIV/AIDS (Choice A). Immunoblotting is another term for Western blotting, so Choice B is incorrect. Southern blotting is used for DNA analysis, not for detecting HIV/AIDS (Choice D).