HESI RN
Reproductive System Exam Questions
1. Where does fertilization normally occur?
- A. Ampulla
- B. Interstitial portion
- C. Isthmus
- D. Infundibulum
Correct answer: A
Rationale: Fertilization typically occurs in the ampulla of the fallopian tube. The ampulla provides the ideal environment for fertilization due to the presence of cilia that help transport the egg and sperm, as well as the nourishing fluid within this region. The interstitial portion, isthmus, and infundibulum of the fallopian tube are not the primary sites for fertilization. The interstitial portion connects the fallopian tube to the uterine cavity, the isthmus is the narrowest part near the uterus, and the infundibulum is the funnel-shaped end near the ovary, where the egg is captured after ovulation.
2. What type of epithelium lines the urinary bladder?
- A. Transitional epithelium.
- B. Stratified epithelium.
- C. Glandular tissue.
- D. Endometrium.
Correct answer: A
Rationale: The correct answer is A: Transitional epithelium. The urinary bladder is lined with transitional epithelium, a specialized type of epithelial tissue that can stretch and recoil to accommodate changes in volume as the bladder fills and empties. Stratified epithelium (choice B) is not the main lining of the urinary bladder and is found in other areas like the skin. Glandular tissue (choice C) is responsible for producing secretions and is not typically found lining the urinary bladder. Endometrium (choice D) is the inner lining of the uterus and is not present in the urinary bladder.
3. Outlet of the true pelvis anteriorly bounded by:
- A. Ischiopubic arch (T)
- B. Linea terminalis (F)
- C. Coccyx (T)
- D. Promontory of the sacrum (F)
Correct answer: A
Rationale: The correct answer is A: Ischiopubic arch. The outlet of the true pelvis is indeed anteriorly bounded by the ischiopubic arch, which consists of the ischium and the pubic bones. This structure forms the lower boundary of the pelvic outlet. The other choices, B, C, and D, are incorrect. The linea terminalis (pelvic brim) forms the upper boundary of the true pelvis, the coccyx is part of the bony pelvis but does not bound the pelvic outlet anteriorly, and the promontory of the sacrum is located in the posterior part of the pelvis, not the anterior boundary of the pelvic outlet.
4. Which animal is an ovoviviparous animal?
- A. Basking shark
- B. Bonobo
- C. Blue shark
- D. None of the above
Correct answer: C
Rationale: The correct answer is the Blue shark. Ovoviviparous animals produce eggs that develop inside the body of the parent, and the offspring are born alive. The basking shark does not fall under this category as it is ovoviviparous, meaning it lays eggs that hatch inside the female's body. The bonobo is a separate species and not relevant to the question.
5. Abortion is defined as:
- A. Bleeding per vaginum in early pregnancy
- B. Willingness to terminate pregnancy
- C. Expulsion of products of conception after the 28th week of gestation
- D. Expulsion of products of conception before the 28th week of gestation
Correct answer: D
Rationale: Abortion is defined as the expulsion of products of conception before the 28th week of gestation. Choice A is incorrect as it describes bleeding in early pregnancy, not the definition of abortion. Choice B is incorrect as it refers to the willingness to terminate a pregnancy rather than the actual act of expulsion. Choice C is incorrect as it defines abortion as the expulsion of products of conception after the 28th week of gestation, which is considered a stillbirth.
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