Which of the following is not a "plumbing" structure of the urinary system?
Urethra
Ureters
Glomeruli
Urinary bladder
The Correct Answer is C
A. Urethra: The urethra is a tube that carries urine from the bladder to outside the body—part of the “plumbing.”
B. Ureters: These are tubes that transport urine from the kidneys to the bladder.
C. Glomeruli: Glomeruli are part of the kidney’s filtration system, not the excretory “plumbing” system.
D. Urinary bladder: The bladder stores urine and is considered part of the urinary “plumbing.”
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Gallbladder: The gallbladder stores bile, but it is not a major recipient of portal vein blood.
B. Duodenum: The duodenum receives chyme from the stomach, but not blood from the portal vein.
C. Liver: The portal vein carries nutrient-rich blood from the GI tract (including intestines and stomach) directly to the liver for metabolism and detoxification.
D. Pancreas: Although nearby, the pancreas is not the primary organ supplied by the portal vein for nutrient processing.
Correct Answer is D
Explanation
A. Absorption: Absorption refers to nutrients being taken into the bloodstream, mainly in the intestines.
B. Peristalsis: Peristalsis is the muscular movement of food through the digestive tract, not chewing.
C. Regulation: Regulation refers to control mechanisms in digestion but not to the act of chewing.
D. Mechanical digestion: Chewing breaks food into smaller pieces, which is mechanical digestion and prepares food for chemical digestion.
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