In oral gavage, through which route is the feeding needle threaded?

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Study for the Working with the Laboratory Mouse AALAS Test. Explore flashcards and multiple choice questions, each with hints and explanations. Get ready for your exam!

Multiple Choice

In oral gavage, through which route is the feeding needle threaded?

Explanation:
The feeding needle is threaded down the esophagus from the mouth into the stomach. This route is used because gavage aims to deliver liquid directly into the stomach for precise dosing and absorption. The esophagus connects the mouth to the stomach and uses peristaltic movement to transport the liquid, whereas the trachea is part of the airway and placing a needle there risks aspiration into the lungs, and the nasal cavity does not provide a reliable path to the stomach.

The feeding needle is threaded down the esophagus from the mouth into the stomach. This route is used because gavage aims to deliver liquid directly into the stomach for precise dosing and absorption. The esophagus connects the mouth to the stomach and uses peristaltic movement to transport the liquid, whereas the trachea is part of the airway and placing a needle there risks aspiration into the lungs, and the nasal cavity does not provide a reliable path to the stomach.

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