Prior to chemical tests for glycosuria, clinicians checked for sweetness of the urine as a sign of
pyelitis
diabetes mellitus
renal calculus
acute glomerulonephritis
The Correct Answer is B
A. Pyelitis is an infection of the renal pelvis and does not cause sweet-smelling urine.
B. Diabetes mellitus often causes glycosuria (glucose in urine), which can make urine taste sweet.
C. Renal calculus (kidney stones) does not affect urine sweetness.
D. Acute glomerulonephritis affects kidney function and urine appearance but does not specifically cause sweet-smelling urine.
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Correct Answer is C
Explanation
A. Fundus is the upper part of the stomach, which does not regulate the flow of contents to the duodenum.
B. Gastric rugae are folds in the stomach lining that allow for expansion but do not regulate the flow of contents to the duodenum.
C. Pyloric sphincter controls the flow of partially digested food (chyme) from the stomach into the duodenum.
D. Antrum is the lower portion of the stomach that helps in mixing and grinding food but does not directly regulate its flow to the duodenum.
Correct Answer is B
Explanation
A. 20,000 to 30,000: This number is too high for the typical number of sperm that reach the vicinity of the egg.
B. 20 to 200: This number is within the range of the actual number of sperm that typically reach the vicinity of the egg.
C. Half: This is an exaggerated number, as far fewer than half of the ejaculated sperm reach the vicinity of the egg.
D. 2000 to 3000: This number is too high for the typical number of sperm that reach the vicinity of the egg.