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
Yellow or green stained vomitus
means bile from the duodenum
Deeper brown color
My indicate content from lower intestine
Recurrent vomiting of undigested food
Problem with fastric emptying or infection
Coffee ground vomitus
brown granular material indicates action of HCL of hemoglobin
Define Steaorrhea
Fatty diarrhea
Define Frank blood
Red blood-usually from lesions in rectum or anal canal
Define occult blood
Small hidden amounts,detectable with stool test
-may be caused by small bleeding ulcers
Define Melena
- Dark colored, tarry stool
- may result from significant bleeding in upper digestive tract
Define Dysphagia
Difficulty swallowing
Define Hiatal Hernia
- Part of the stomach protrudes into the thoracic cavity
- Sliding hernia
- Rolling or para-esophageal hernia.
Define Pyrosis
Synonym for heartburn
Define HAV
transmitted from contaminated foods
