The
The Correct Answer is {"dropdown-group-1":"B"}
A. External urethral orifice: This is the external opening of the urethra, and part of the urethral passageway.
B. Internal urethral sphincter: This is a muscular structure that regulates flow, but it is not a section of the urethral tube itself.
C. Prostatic urethra: This is the part of the male urethra that passes through the prostate gland.
D. Membranous urethra: This portion passes through the urogenital diaphragm in males.
E. Spongy urethra: The longest segment of the male urethra, it runs through the penile (spongy) tissue.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Intrinsic factor: Intrinsic factor, secreted by parietal cells, is essential for vitamin B₁₂ absorption in the ileum. Vitamin B₁₂ is needed for RBC production and hemoglobin synthesis.
B. Gastric lipase: Gastric lipase breaks down lipids, not involved in hemoglobin production.
C. Pepsinogen: Pepsinogen is converted to pepsin, which digests proteins-not related to RBC or hemoglobin synthesis.
D. HCl: Hydrochloric acid helps activate enzymes and digest food, but does not directly influence hemoglobin production.
Correct Answer is C
Explanation
A. Because it saves one step in its synthesis: Zymogen secretion is about preventing premature activation, not simplifying synthesis.
B. So it will start digesting intracellular proteins of the chief cells more quickly: This would be harmful-zymogens prevent self-digestion of the cells that produce them.
C. So it acts only in the stomach lumen and does not digest intracellular proteins: Pepsin is secreted as inactive pepsinogen to prevent it from digesting the proteins inside chief cells. It is only activated to pepsin in the acidic environment of the stomach lumen.
D. So it can start digesting dietary proteins more quickly: Speed is not the reason for secreting it as a zymogen-safety is.
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