Multiple Choice
What is the primary function of the villi in the small intestine?
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23. The Digestive System
Introduction to the Digestive System
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Which compartment is considered the true stomach of a ruminant?
A
Omasum
B
Reticulum
C
Rumen
D
Abomasum
Verified step by step guidance1
Understand the anatomy of a ruminant's digestive system, which consists of four compartments: rumen, reticulum, omasum, and abomasum.
Learn the function of each compartment: the rumen is for fermentation, the reticulum traps foreign objects and aids in regurgitation, the omasum absorbs water and nutrients, and the abomasum functions similarly to a monogastric stomach.
Recognize that the abomasum is referred to as the 'true stomach' because it secretes digestive enzymes and acids, breaking down food chemically, unlike the other compartments that primarily perform mechanical or microbial digestion.
Compare the abomasum to the stomach of non-ruminant animals, noting its role in enzymatic digestion and its structural similarity to a monogastric stomach.
Conclude that the abomasum is the correct answer because it is the compartment responsible for true stomach functions in ruminants.
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