Terminal Learning Objective:
-Enabling Learning Objectives - ANS -Given the digestive system, diagram the
process of digestion and function of the organs within the system IAW Hole's Essentials of
Human Anatomy and Physiology:
-Define terms related to the digestive system.
-Identify the general characteristics of the alimentary canal and accessory organs.
-Relate the structure of the walls of the alimentary canal to it's role in digestion.
-Contrast the structure and function of each of the components of the alimentary canal
and the accessory organs.
-Locate the components of the digestive system.
Assimilation - ANS -The process by which nutrients from foods are taken into the
cells of the body after the food has been digested and absorbed.
Absorption - ANS -The process by which nutrient molecules pass through the wall of
the digestive system into the blood
Bolus - ANS -A term used to describe food after it has been chewed and mixed with
saliva
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, Chyme - ANS -Partially digested, semiliquid food mixed with digestive enzymes and
acids in the stomach.
Digestion - ANS -Breakdown of food substances into simpler forms that can be
absorbed and used. There are two kinds.
Defecation - ANS -Elimination of feces
Ingestion - ANS -The intake of food from the environment into the alimentary canal
Mechanical Digestion - ANS -Physical breakdown of large pieces of food into smaller
pieces (chewing and intestinal compression)
Chemical Digestion - ANS -Process by which enzymes break down food into small
molecules that the body can use (Stomach acid and saliva)
Digestive System - ANS -Extends from mouth to anus and consists of:
Alimentary Canal and Accessory Organs
Alimentary Canal - ANS -Mouth, Pharynx, Esophagus, Stomach, Small Intestines,
Large Intestines, Rectum, and Anus.
Accessory Organs - ANS -Salivary Glands, Liver, Gallbladder, and Pancreas.
Alimentary Canal: Mouth - ANS -Hollow chamber with roof, floor, and walls.
Receives the food (ingestion) and begins mechanical (chewing) and chemical (saliva)
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digestion (chemical digestion of carbohydrates)
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