Identify the structure labeled C.
A
B
C
D
E
The Correct Answer is C
C- Ascending colon: The ascending colon is the right-sided large-intestine segment that ascends from the cecum to the hepatic (right colic) flexure; on a standard abdominal/colonic diagram the ascending colon is vertical on the right side and shows haustral markings.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Chief cells: Chief (zymogenic) cells secrete pepsinogen (precursor to pepsin) and some gastric lipase -not HCl or intrinsic factor.
B. Parietal cells: Parietal cells (oxyntic cells) secrete hydrochloric acid (HCl) and intrinsic factor (necessary for B12 absorption).
C. Mucous neck cells: Mucous neck cells produce mucus (and some protective secretions) to protect the stomach lining -not HCl/intrinsic factor.
D. Enteroendocrine cells: Enteroendocrine cells release hormones (e.g., gastrin, somatostatin) that regulate digestion -do not secrete HCl or intrinsic factor directly.
Correct Answer is D
Explanation
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.
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