Nokea
About the external male genital organ, we can state the following:
- A. it is part of the urinary ducts, being a urination organ;
- B. it is represented by the urethra;
- C. it is a pair organ;
- D. it is located above the scrotum, anterior to the pubian symphisis;
Correct Answer: B
Rationale: Step-by-step rationale for why answer B is correct:
1. The external male genital organ is represented by the urethra, which is the duct that carries urine from the bladder out of the body.
2. The urethra is responsible for both urination and ejaculation.
3. The other choices are incorrect because the external male genital organ is not part of the urinary ducts, not a pair organ, and not located above the scrotum.
You may also like to solve these questions
Which blood vessel in the fetus has the highest Po2?
- A. Ductus arteriosus
- B. Ductus venosus
- C. Ascending aorta
- D. Left atrium
Correct Answer: B
Rationale: The correct answer is B: Ductus venosus. The ductus venosus carries oxygenated blood from the umbilical vein to the inferior vena cava, bypassing the liver. This blood has the highest Po2 among the choices because it is coming directly from the placenta, where oxygen exchange occurs. The other choices (A, C, D) carry deoxygenated blood or blood with lower oxygen content in the fetal circulation. The ductus arteriosus shunts blood from the pulmonary artery to the aorta, so it carries deoxygenated blood. The ascending aorta and left atrium receive mixed oxygenated and deoxygenated blood, not the highest Po2.
What does line “A” point to?
- A. Lymphatic vessels
- B. Pampiniform plexus
- C. Internal spermatic fascia
- D. Spermatic cord
Correct Answer: A
Rationale: The correct answer is A: Lymphatic vessels. Line "A" typically points to lymphatic vessels because they play a crucial role in draining excess fluid and waste products from tissues. They help maintain fluid balance and immunity. The other choices are incorrect because the pampiniform plexus is a network of veins in the spermatic cord, the internal spermatic fascia is a layer of connective tissue surrounding the spermatic cord, and the spermatic cord is a structure containing blood vessels, nerves, and ducts that support the testes. These structures are closely related anatomically but serve different functions compared to lymphatic vessels.
The process of creating female ________.
- A. areola
- B. spermatogenesis
- C. lactiferous sinus
- D. oogenesis
Correct Answer: D
Rationale: The correct answer is D: oogenesis. Oogenesis is the process of creating female gametes (eggs) through cell division in the ovaries. This process involves several stages including mitosis, meiosis, and maturation. Spermatogenesis (B) is the process of creating male gametes (sperm) in the testes. The areola (A) is the pigmented area around the nipple, not a reproductive process. The lactiferous sinus (C) is a structure within the breast involved in milk storage, not the process of creating female gametes.
Which one of the following is not a component of semen?
- A. Sperm
- B. Seminal fluid
- C. Prostatic fluid
- D. Bulbourethral fluid
Correct Answer: D
Rationale: The correct answer is D: Bulbourethral fluid. Semen is composed of sperm, seminal fluid, and prostatic fluid. Bulbourethral fluid is not a component of semen but contributes to pre-ejaculatory fluid. This fluid is released from the Cowper's glands and serves to lubricate the urethra prior to ejaculation. The other choices (A, B, C) are all essential components of semen that play crucial roles in sperm transport, nourishment, and protection.
When are HCG levels the highest?
- A. before pregnancy
- B. first days of gestation
- C. second month of pregnancy
- D. end of pregnancy
Correct Answer: C
Rationale: The correct answer is C: second month of pregnancy. During the second month of pregnancy, HCG levels typically peak and reach their highest levels. This is because HCG is produced by the placenta, which develops and grows rapidly during this stage of pregnancy. Higher HCG levels during this time help support the developing fetus and maintain the pregnancy.
A: before pregnancy - HCG levels are not present before pregnancy.
B: first days of gestation - HCG levels are detectable shortly after implantation, but they continue to rise and peak in the second month.
D: end of pregnancy - HCG levels typically decrease towards the end of pregnancy as the placenta matures and other hormones take over to support the pregnancy.