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Unformatted text preview: KIN 205: Chapter 21, Digestion:
Digestion: the chemical and
mechanical breakdown of foods
into smaller units that can be
taken across the intestinal
epithelium into the body. Absorption: the active or passive
transfer of substances from the
lumen of the gastrointestinal (GI)
tract to the extracellular fluid
(ECF). Motility: the movement of material in
the GI tract as a result of muscle
contraction. Secretion: refers to:
2) the transfer of water and ions
from the ECF to the lumen, and
the release of synthesized
material by GI epithelial cells. ...
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This note was uploaded on 12/26/2011 for the course KIN 205 taught by Professor Blaber during the Fall '09 term at Simon Fraser.
- Fall '09