Digestion Flashcards
Oral cavity (teeth and tongue)
Mastication
Deglutition
Pharynx
Deglutition
Esophagus
Deglutition
Peristalsis (waves of muscular contraction)
1-8 seconds
Stomach
Mixing (chyme)
Peristalsis
2-6 hours
Small intestine (small bowel)
Rhythmic segmentation (churning)
Peristalsis
3-5 hours
Carbohydrates
Complex sugars become simple sugars in the mouth and stomach
Proteins
Become amino acids in the stomach and small bowel
Lipids
Become fatty acids and glycerol in small bowel only
3 things ingested and absorbed but not digested
Vitamins
Minerals
Water
Enzymes are
Biological catalysts in digestive juices
Bile
From gall bladder
Emulsifies fats
3 things ingested, digested, and absorbed
Carbohydrates
Proteins
Lipids
Primary functions of digestive system
Ingestion and/or digestion
Absorption
Elimination
5 places for ingestion and or digestion
Oral cavity Pharynx Esophagus Stomach Small intestine
Absorption takes place in
Small intestine
Stomach
Elimination
Large intestine
Water is absorbed in
Large intestines
Adult esophagus is about how long
10 inches
Where does the esophagus start
Level of c-6 or the upper margin of the thyroid cartilage
Where is the esophagus in relation to the trachea and heart?
Posterior
At what level does the esophagus pass through the diaphragm?
T-10
The esophagus increases in diameter and joins the stomach at?
Esophagogastric junction
At the level of xiphoid tip T-11
The expanded portion of the esophagus is called
Cardiac Antrum
Food that has been mechanically and chemically altered in the stomach is
Chyme
And transported to the duodenum!
