Nokea
A 22-yr-old patient reports her concern about not having a menstrual period for the past 7 months. Which statement by the patient indicates a possible related factor to the amenorrhea?
- A. “I drink at least 3 glasses of nonfat milk every day.”
- B. “I run 7 to 8 miles every day to manage my weight.”
- C. “I am not sexually active but currently I have an IUD
- D. “I was treated for a sexually transmitted infection 2 years ago.”
Correct Answer: B
Rationale: The correct answer is B. Running 7 to 8 miles daily can lead to amenorrhea due to excessive exercise-induced stress on the body, affecting hormone levels and menstrual cycle. This is known as exercise-induced amenorrhea. Choices A, C, and D do not directly correlate with amenorrhea. Choice A indicates a healthy calcium intake. Choice C suggests the presence of an IUD, which is not typically associated with amenorrhea. Choice D indicates a history of STI, which may not directly cause amenorrhea.
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Each spermatid and each ovum have ________. ________.
- A. glans penis
- B. 23 pairs of chromosomes
- C. shaft of the penis
- D. 23 chromosomes
Correct Answer: D
Rationale: The correct answer is D: 23 chromosomes. Spermatids and ova are haploid cells formed through meiosis, containing only half the number of chromosomes (23) as a normal diploid cell. This is essential for maintaining the proper chromosome number when fertilization occurs. Glans penis and shaft of the penis (choices A and C) are structures related to the male reproductive system but are not present in spermatids or ova. Having 23 pairs of chromosomes (choice B) would result in a total of 46 chromosomes, which is incorrect for these gametes.
Which of the following are the advantages of a vaginal hysterectomy over an abdominal hysterectomy?
- A. Fewer complications
- B. Increased recovery time
- C. Radical hysterectomy can even be done laparoscopically
- D. No pain
Correct Answer: A
Rationale: Vaginal hysterectomies generally have fewer complications and quicker recovery times compared to abdominal procedures.
A fracture united in unacceptable alignment is termed as:
- A. Delayed union
- B. Crepitus
- C. Malunion
- D. Nonunion
Correct Answer: C
Rationale: The correct answer is C: Malunion. Malunion refers to a fracture that has healed in an unacceptable alignment. This occurs when the fractured bones do not align properly during the healing process, leading to deformity or functional impairment. Delayed union (A) is when a fracture takes longer than usual to heal. Crepitus (B) is a term used to describe a grating or crackling sound or sensation in a joint. Nonunion (D) is when a fracture fails to heal altogether. Malunion specifically addresses the issue of improper alignment post-fracture healing, making it the most appropriate choice in this scenario.
Variations in eye color are determined by the number of pigmented cells in the:
- A. Ciliary epithelium
- B. Iris epithelium
- C. Iris stroma
- D. Corneal stroma
Correct Answer: C
Rationale: The correct answer is C: Iris stroma. The iris stroma contains melanocytes, which are responsible for producing the pigmented cells that determine eye color. These pigmented cells give the iris its color by absorbing and reflecting light. The ciliary epithelium (choice A) is not involved in determining eye color. The iris epithelium (choice B) is mainly responsible for controlling the size of the pupil, not for determining eye color. The corneal stroma (choice D) is a layer of the cornea that primarily provides structural support and transparency to the eye, but it does not play a role in determining eye color.
Bidder's canal receives __________.
- A. Eggs
- B. Sperms
- C. Ammonia
- D. Oxygenated blood
Correct Answer: D
Rationale: The correct answer is D: Oxygenated blood. Bidder's canal is a part of the male reproductive system and functions to transport oxygenated blood to the testicles. This is essential for maintaining the temperature required for sperm production. Eggs (A) are not transported through Bidder's canal as it is specific to male reproductive functions. Sperms (B) are produced in the testicles but are not transported through Bidder's canal. Ammonia (C) is a waste product and not involved in the circulation within the male reproductive system.