Nokea
Which structure helps regulate the temperature of the testes?
- A. Dartos muscle
- B. Tunica vaginalis
- C. Tunica albuginea
- D. Seminiferous tubules
Correct Answer: A
Rationale: The correct answer is A: Dartos muscle. The Dartos muscle is a layer of smooth muscle in the scrotum that contracts and relaxes to regulate the temperature of the testes by adjusting their distance from the body for temperature control. The other choices are incorrect because:
B: Tunica vaginalis is a serous membrane that surrounds the testes, providing support and lubrication.
C: Tunica albuginea is a dense fibrous membrane that covers the testes, providing structural support.
D: Seminiferous tubules are the site of sperm production in the testes, but do not play a direct role in temperature regulation.
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__________________ glands located just beneath the urinary bladder produce fluids that aid in nourishment and provides energy to the sperm cells
- A. Bulbourethral glands
- B. Bartholin's glands
- C. Seminal vesicle
- D. Prostate gland
Correct Answer: C
Rationale: The correct answer is C: Seminal vesicle. Seminal vesicles are located just beneath the urinary bladder and produce fluids that aid in nourishment and provide energy to sperm cells. They contribute a significant portion of seminal fluid, which contains nutrients and substances that enhance sperm motility and viability. The other choices are incorrect because: A (Bulbourethral glands) produce pre-ejaculate fluid for lubrication, B (Bartholin's glands) are located near the vaginal opening in females, and D (Prostate gland) produces a fluid that helps with sperm motility and viability but is not located just beneath the urinary bladder.
Which of the following is not involved in parturition.
- A. an increase in prostaglandin secretion
- B. an increase in uterine oxytocin receptors
- C. an increase in luteinising hormone secretion.
- D. an increase in oxytocin secretion.
Correct Answer: C
Rationale: Step-by-step rationale:
1. Parturition is the process of giving birth.
2. Luteinising hormone (LH) is primarily involved in the menstrual cycle and ovulation, not parturition.
3. Prostaglandins and oxytocin play crucial roles in initiating and sustaining labor.
4. An increase in uterine oxytocin receptors is necessary for effective uterine contractions during parturition.
5. Therefore, an increase in luteinising hormone secretion is not involved in parturition.
Summary of incorrect choices:
A: Incorrect - an increase in prostaglandin secretion is involved in parturition.
B: Incorrect - an increase in uterine oxytocin receptors is necessary for parturition.
D: Incorrect - an increase in oxytocin secretion is crucial for initiating labor.
Inflammation of joints
- A. Arthritis
- B. Osteomyelitis
- C. Chondritis
- D. Chondritis
Correct Answer: A
Rationale: The correct answer is A: Arthritis. Arthritis specifically refers to inflammation of joints, making it the most appropriate choice. Osteomyelitis (B) is an infection of the bone, not joints. Chondritis (C) is inflammation of cartilage, not joints. The duplicate choice of Chondritis (D) is incorrect.
Why is rupturing of the hymen not considered a confirmation of loss of virginity?
- A. Because the hymen is not affected by any sexual activity
- B. Because the hymen can be perforated during physical activity, insertion of a tampon, or pelvic examination.
- C. Because the hymen is ruptured the first time a person urinates.
- D. Because the hymen is very delicate and may be ruptured even when running or doing strenuous exercises.
Correct Answer: B
Rationale: The hymen can be perforated by various non-sexual activities, making it an unreliable indicator of virginity.
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.