Name this valve:
Ileoappendix
Pyloric sphincter
Duodenorenal
Ileocecal
The Correct Answer is D
A. Ileoappendix: Not a standard anatomical valve -the term suggests a junction with the appendix but is not the valve between small and large intestine.
B. Pyloric sphincter: The pyloric sphincter is between the stomach and duodenum, not at the ileum–cecum junction.
C. Duodenorenal: Not a recognized valve -describes a relation between duodenum and kidney region, not a valve.
D. Ileocecal: The ileocecal (ileocecal/ileocecal) valve is the sphincter at the junction of the terminal ileum and cecum that controls flow of chyme into the large intestine.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Loop of Henle: The Loop of Henle is the U-shaped segment of the nephron that extends into the medulla and concentrates urine.
B. Proximal Convoluted Tubule: The PCT is the first convoluted segment after Bowman's capsule and is responsible for bulk reabsorption of solutes and water.
C. Bowman's Capsule: Bowman's capsule is the double-walled cup that surrounds the glomerular capillary tuft and collects filtrate.
D. Glomerulus: The glomerulus is the capillary tuft inside Bowman's capsule that performs plasma filtration.
E. Collecting Duct: The collecting duct collects filtrate from multiple nephrons and participates in final water/solute adjustments.
Correct Answer is C
Explanation
A. "It is an enzyme released into the duodenum.":Salivary amylase is secreted into the mouth; pancreatic amylase is released into the duodenum.
B. "It is an enzyme that breaks down the fats in breast milk.":Salivary amylase digests starches (carbohydrates); lingual lipase (and gastric/pancreatic lipases) act on fats.
C. "It is an enzyme that initiates the breakdown of carbohydrates.":Salivary amylase begins starch digestion in the oral cavity by cleaving polysaccharides into smaller sugars.
D. "It is an enzyme that breaks down proteins in the stomach.":Proteolysis in the stomach is primarily by pepsin (a gastric enzyme), not salivary amylase.
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