Chapter 17 Flashcards
Which organ is located the digestive and respiratory system
The pharynx
Define peristaltic
the wavelike muscular contractions in tubular structures.
True of False: Can you break down with without bile?
false
Define Steatorrhea
Fatty stools
What is the importance of the duodenum?
Receives pancreatic juice from the duodenum
-Receives bile from the liver
receives food from the stomach
Layers of the Gut Wall
-Mucosa
-Submucosa
-Muscularis
-Serosa = adrentitia fibrous
(Mucosa deep and serosa superficial)
Define Oral Cavity
Initial phase of mechanical breakdown food
- intial chemical digestion
- formation bolus
Define Pharynx
swallowing (deglutition)
Esophagus
-Closed except during swallowing, skeletal muscle at superior end
Characteristics of the stomach
- Three smooth muscle layers
- constant mixing and churning of food
- initial digestion of proteins
- Production of intrinsic factors
- formation of chyme
Define Intrinsic factors
Essential for absorption of vitamin B12 in the ileum
Characteristics of the liver
- Bile production
- Production of the plasma proteins
- breakdown of old and damaged erythrocytes
Characteristics of the pancreas
- exocrine pancreas arranged in lobules
- secretes digestive enzymes, electrolytes
- pancreatic duct bile duct to enter duodenum
Significance the bicarbonate ions
-To neutralize acidity of the digestive system
Why is the Lacteal important
All the fatty components go thourgh the lacteal