Nokea
The testicle is located:
- A. inside a muscular pouch;
- B. inside the scrotum;
- C. at the inguinal canal;
- D. inside the abdominal cavity;
Correct Answer: B
Rationale: The correct answer is B: inside the scrotum. The testicles are located outside the abdominal cavity in a structure called the scrotum. This location is essential for temperature regulation as sperm production requires a slightly lower temperature than the body's core. Choices A, C, and D are incorrect as the testicles are not inside a muscular pouch, at the inguinal canal, or inside the abdominal cavity.
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The seminal vesicle:
- A. is located above the prostate;
- B. is a pair organ;
- C. is located medially from the deferent ducts;
- D. has endocrine role, generating the seminal fluid;
Correct Answer: B
Rationale: The correct answer is B because the seminal vesicle is indeed a pair organ, meaning there are two of them in the male reproductive system. They are located posterior to the urinary bladder and are responsible for producing and secreting a significant portion of the seminal fluid.
Choice A is incorrect because the seminal vesicles are located behind the bladder, not above the prostate. Choice C is incorrect as the seminal vesicles are located laterally, not medially from the deferent ducts. Choice D is incorrect because the seminal vesicle is not an endocrine organ; it has an exocrine function in producing seminal fluid.
The spongy tissue of the penis fills
- A. circumcision with blood during sexual excitement
- B. spermatogenesis and causes the penis to enlarge and
- C. ejaculation become rigid during ________.
- D. erection
Correct Answer: D
Rationale: The spongy tissue of the penis fills with blood during an erection to cause the penis to become rigid. This process is essential for maintaining an erection during sexual activity. Spermatogenesis refers to the production of sperm, not the filling of spongy tissue. Circumcision does not involve the filling of spongy tissue with blood. Ejaculation is the release of semen and does not involve the filling of spongy tissue. Therefore, the correct answer is D as it accurately describes the physiological process of penile erection.
If bone is splintered or crushed in several places it is termed as
- A. Complex fracture
- B. Greenstick fracture
- C. Impacted fracture
- D. Comminuted fracture
Correct Answer: D
Rationale: The correct answer is D: Comminuted fracture. This type of fracture occurs when the bone is splintered or crushed in several places, leading to multiple bone fragments. This term accurately describes the situation where the bone is broken into multiple pieces.
A: Complex fracture refers to a fracture that involves multiple breaks in a bone, but not necessarily into multiple small fragments.
B: Greenstick fracture is an incomplete fracture where the bone is bent but not completely broken.
C: Impacted fracture occurs when the broken ends of the bone are driven into each other, typically seen in a fall with a lot of force, but it does not involve multiple bone fragments like in a comminuted fracture.
Which of the following decreases the resistance in the arteries leading to the sinuses of the penis?
- A. Stimulation of the sympathetic nerves innervating the arteries
- B. Nitric oxide
- C. Inhibition of activity of the parasympathetic nerves leading to the arteries
- D. All of the above
Correct Answer: B
Rationale: The correct answer is B: Nitric oxide. Nitric oxide is a potent vasodilator that relaxes smooth muscle in the arterial walls, leading to decreased resistance in the arteries. This results in increased blood flow to the sinuses of the penis, contributing to erectile function.
A: Stimulation of the sympathetic nerves innervating the arteries would actually increase resistance by causing vasoconstriction.
C: Inhibition of activity of the parasympathetic nerves leading to the arteries would also increase resistance as parasympathetic stimulation typically leads to vasodilation.
Therefore, the correct answer is B as it directly causes vasodilation and decreases resistance in the arteries leading to the sinuses of the penis, which is essential for erectile function.
The Fallopian tube is located between:
- A. uterus;
- B. vagina;
- C. ovary;
- D. vulva;
Correct Answer: C
Rationale: The correct answer is C, ovary. The Fallopian tube is located between the ovary and the uterus. It serves as the passage for the egg to travel from the ovary to the uterus. The other choices are incorrect because the uterus (choice A) is where the fertilized egg implants and grows during pregnancy, the vagina (choice B) is the canal leading from the outside of the body to the uterus, and the vulva (choice D) is the external genitalia. Therefore, only the ovary (choice C) is the correct anatomical structure that is connected to the Fallopian tube.