Module 3 Chapter 24 Flashcards
Which accessory organ produces the greatest variety of digestive enzymes?
Pancreas
What 3 locations does chemical digestion take place?
Oral Cavity, Stomach, and Small Intestine
Where is food storage between meals?
Stomach
What location does mechanical digestion, chewing, and moistening occur?
Oral Cavity
In what area of digestion is the food moistened and mixed?
Stomach
Where does the most absorption occur during digestion?
Small Intestines
In what area does the most chemical digestion occur?
Small Intestines
What structure of the digestive system passes through the thoracic cavity?
Esophagus
What structure processes and eliminates undigested wastes?
Large Intestine
Which Organ is responsible for PRODUCING Bile?
Liver
At what point in the digestive tract receives secretions from the pancreas and Liver?
Small Intestines
What structure is responsible for STORING Bile?
Gall Bladder
What 3 structures are responsible for the swallowing of food?
Esophagus, Pharynx, and Oral Cavity
What is Deglutination?
Swallowing
What is the name of the portion of stomach that food goes first?
Cardia
What is the name of the portion of stomach that food goes second?
Fundus
What is the name of the portion of stomach that food goes thrid?
Body
What is the name of the portion of stomach that food goes fourth?
Pylorus
Trace a bite of food from the oral cavity to large intestine. 6 steps
- oral cavity
- pharnyx
- esophagus
- stomach
- small intestine
- large intestine
Name the 3 accessory organs for digestion.
Liver
Gallbladder
Pancreas
Name 2 factors that help move substances along the digestive tract.
Mucus
Paristalsis
Name the 4 layers of the digestive tract from Lumen to outermost layer.
- Mucosa
- Submucosa
- Muscularis
- Serosa
Mucosa layer
- where is it
- what type of epithelial
- function
- innermost layer of digestive tract
- simple columnar
- makes mucus, secretes & absorbs enzymes & nutrients.
- contains lamina propria & MALT
- contains both endocrine & exocrine cells
Submucosa layer
- where is it
- what type of epithelial
- function
- External to mucosa
- thick fibrous connective tissue
- contains a nerve plexus & blood & lymph vessels
Muscularis layer
- where is it
- what type of epithelial
- function
- External to Submucosa layer
- 2 smooth muscle layers & a nerve plexus
- performs peristalsis (mixing & movement of food)
Serosa layer
- where is it
- what type of epithelial
- outermost layer
- simple squamous, serous membrane, visceral peritoneum
What is the ampulla of vater (hepatopancreatic ampulla)
-What does it do
- the opening into the duodenum from the accessory organs
- opens & closes (it is a sphincter) sphincter of Oddi
Name the 3 sections of small intestine in order:
- Duodenum
- Jejunum
- ileum
Visceral Peritoneum
Serosa
Cavity between visceral & parietal layers
Peritoneal cavity
Connects between lesser curvature of stomach & liver
Lesser omentum
Connects the liver to the diaphragm & anterior abdominal wall
Falciform Ligament
Contains peritoneal fluid
Peritoneal cavity
Covers abdominal organs
visceral peritoneum
Extends from posterior abdominal wall to small intestine
mesentery