Nokea
The roles of the testicle are:
- A. endocrine gland (to produce sperm cells);
- B. exocrine gland (to secrete androgenic hormones);
- C. spermatogenesis;
- D. generation of semen;
Correct Answer: C
Rationale: Rationale for correct answer (C): The main function of the testicles is spermatogenesis, which is the process of producing sperm cells. This is a crucial role in male reproductive system. Spermatogenesis occurs in the seminiferous tubules of the testes. Other functions like producing androgenic hormones (choice B) are mainly carried out by the Leydig cells in the testes, not the testicles themselves. While the testicles do play a role in semen production (choice D), this is not their primary function. Therefore, the correct answer is C as it directly relates to the main purpose of the testicles in the male reproductive system.
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Outermost layer of the uterus is
- A. Peritoneum
- B. Pericardium
- C. Perimetrium
- D. Pericyte
Correct Answer: C
Rationale: The correct answer is C: Perimetrium. The perimetrium is the outermost layer of the uterus and consists of a thin serous layer of connective tissue. This layer provides support and protection to the uterus.
Rationale:
1. Peritoneum (A) is the serous membrane that lines the abdominal cavity, not the outermost layer of the uterus.
2. Pericardium (B) is the membranous sac that surrounds the heart, not related to the uterus.
3. Pericyte (D) is a type of cell found in blood vessels and involved in vascular function, not a layer of the uterus.
In summary, the perimetrium is the correct answer as it is the specific layer that forms the outer covering of the uterus, providing structural support and protection.
Which of the following is a rounded, knuckle like bony process at the joint?
- A. Trochanter
- B. Tubercle
- C. Tuberosity
- D. Condyle
Correct Answer: D
Rationale: The correct answer is D: Condyle. A condyle is a rounded, knuckle-like bony process found at joints, typically for articulation with another bone. Trochanter (A) is a large, blunt bony process, typically found on the femur. Tubercle (B) is a small, rounded bony prominence. Tuberosity (C) is a large, rounded bony prominence for muscle attachment. Therefore, only condyle fits the description of a rounded bony process at a joint.
Twisting of the spermatic cord results in a condition called
- A. Varicocele
- B. Hydrocele
- C. Cryptorchidism
- D. Testicular torsion
Correct Answer: D
Rationale: The correct answer is D: Testicular torsion. Testicular torsion occurs when the spermatic cord twists, cutting off blood flow to the testicle. This can lead to severe pain and require emergency treatment to prevent tissue damage. Varicocele (A) is the enlargement of veins within the scrotum. Hydrocele (B) is the accumulation of fluid around the testicle. Cryptorchidism (C) is the condition of undescended testicles. Testicular torsion is the only choice that directly involves twisting of the spermatic cord leading to a medical emergency.
A nurse is called to the playground near her house in relation to an adolescent who experienced intense pain in his testicle after riding his bike. The nurse suspects which of the following problems has occurred?
- A. Torsion of the spermatic cord
- B. Cryptorchidism
- C. Phimosis
- D. Spermatocele
Correct Answer: A
Rationale: Testicular torsion presents with sudden, severe pain and requires immediate medical attention.
For fertilization to be accomplished, of the secondary sex characteristics sperm release enzymes to break seen in young women? down the corona radiata from their
- A. enlargement of the accessory ________.
- B. mitochondria
- C. breast development
- D. acrosomes
Correct Answer: D
Rationale: The correct answer is D: acrosomes. Acrosomes are specialized vesicles in the head of the sperm that contain enzymes to help the sperm penetrate the outer layer of the egg during fertilization. Enlargement of the accessory organs (choice A), mitochondria (choice B), and breast development (choice C) are not directly related to the process of fertilization and do not involve the release of enzymes to break down the corona radiata. Acrosomes play a crucial role in the fertilization process by facilitating the penetration of the egg's protective layers, making choice D the correct answer.