The pancreas functions as both an endocrine and exocrine gland. Which of the following accurately describes its dual role?
The exocrine function involves hormone release, while the endocrine function involves the secretion of buffers and enzymes.
The endocrine function involves the secretion of digestive enzymes, while the exocrine function involves hormone release.
The exocrine function involves the release of insulin and glucagon, while the endocrine function involves hormone release.
The endocrine function involves the release of insulin and glucagon, while the exocrine function involves the secretion of digestive enzymes and buffers.
The Correct Answer is D
A. The exocrine function involves hormone release, while the endocrine function involves the secretion of buffers and enzymes.: this reverses the roles; exocrine does enzymes/buffers, endocrine does hormones.
B. The endocrine function involves the secretion of digestive enzymes, while the exocrine function involves hormone release.: reversed roles.
C. The exocrine function involves the release of insulin and glucagon, while the endocrine function involves hormone release.: insulin and glucagon are endocrine products, not exocrine.
D. The endocrine function involves the release of insulin and glucagon, while the exocrine function involves the secretion of digestive enzymes and buffers.: the pancreas’ islet cells secrete insulin/glucagon (endocrine) and acinar/bicarbonate secretions go to the duodenum (exocrine).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Primary bronchus: The primary (main) bronchus is the first large airway branch that arises at the carina from the trachea and conducts air into each lung.
B. Respiratory bronchiole: Respiratory bronchioles are very small distal airways that contain alveoli and are deep within the lung parenchyma; they are much smaller than the structure shown near the main branch.
C. Trachea: The trachea is the central airway above the bifurcation (a vertical tube with cartilage rings); a label on the long central tube would indicate the trachea, not the branching airway.
D. Secondary bronchus: Secondary (lobar) bronchi are branches of the primary bronchus that lead to lung lobes; they are a generation distal to the main bronchus and are smaller than the primary bronchus.
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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