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and the release secretions into the duodenum of the small intestine.
Answer and Explanation

The Correct Answer is {"dropdown-group-1":"B","dropdown-group-2":"B"}

A. Gallbladder: The gallbladder stores and releases bile into the duodenum via the common bile duct when stimulated (e.g., by CCK). It does release a secretion into the duodenum, but it primarily stores bile produced by the liver.
B. Liver: The liver produces bile, which drains via hepatic ducts into the common bile duct and empties into the duodenum -the liver is a primary secretor whose products reach the duodenum.
C. Spleen: The spleen is a lymphoid/hematologic organ (filters blood, immune functions) and does not release digestive secretions into the duodenum.
D. Gastric glands: Gastric glands secrete gastric juice into the stomach lumen (not the duodenum), so they do not release secretions into the duodenum.
E. Pancreas: The exocrine pancreas secretes digestive enzymes and bicarbonate into the duodenum via the pancreatic duct.
F. Intestinal glands: Intestinal glands (crypts of Lieberkühn) secrete intestinal juice directly into the intestinal lumen (including the duodenum), but the most commonly tested paired organs that "release secretions into the duodenum" are the liver (bile) and pancreas (pancreatic juice).


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Related Questions

Correct Answer is A

Explanation

A. Pancreas:Most of the pancreas (head, neck, body) lies retroperitoneal (except the tail which may be intraperitoneal).
B. Stomach:The stomach is intraperitoneal (suspended by mesenteries).
C. Liver:The liver is intraperitoneal (covered by visceral peritoneum except at bare area).
D. Spleen:The spleen is intraperitoneal and suspended by ligaments (not retroperitoneal).

Correct Answer is ["B","C","D","E"]

Explanation

A. Pepsin:Pepsin is an active protease produced in the stomach (from pepsinogen) -not a pancreatic secretion.
B. Sodium bicarbonate:The pancreas secretes bicarbonate-rich fluid to neutralize acidic chyme in the duodenum -pancreatic secretion .
C. Amylase: Pancreatic amylase digests starches into sugars in the small intestine -pancreatic secretion .
D. Nuclease:The pancreas secretes nucleases (e.g., deoxyribonuclease, ribonuclease) to digest nucleic acids -pancreatic secretion .
E. Lipase:Pancreatic lipase hydrolyzes triglycerides into free fatty acids and monoglycerides -pancreatic secretion .
F. Pepsinogen:Pepsinogen is secreted by chief cells in the stomach, not by the pancreas -not a pancreatic secretion.

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