Digestive System Flashcards
(9 cards)
1
Q
What are the 6 functions of the digestive system?
A
- ingestion
- mechanical processing
- chemical breakdown
- secretion of water, acids, buffers and salts
- absorption of organic substances
- excretion
2
Q
What are the components of the digestive system? (Major organs)
A
- Mouth/oral cavity
- pharynx
- esophagus
- stomach
- small intestine
- large intestine
3
Q
What are the accessory organs of the digestive system?
A
- Teeth
- tongue
- salivary glands
- Liver
- gallbladder
- pancreas
4
Q
What is peristalsis?
A
- Contractions of muscles to move food through the digestive tract
5
Q
What are the three stages of swallowing? (Or “deglutition”)
A
- buccal phase (creation of a “bolus”)
- pharyngeal phase
- esophageal phase
6
Q
What are the names of the two sphincters of the stomach?
A
- esophageal (top)
- pyloric (bottom)
7
Q
What are the functions of the stomach?
A
- food storage
- first stage of breaking down food
- folded structure allows expansion
- contains acid secreting cells
8
Q
What are the 3 components of the small intestine?
A
- Duodenum (upper)
- jejunum (mid)
- ileum (lower)
9
Q
What are the 4 colons in the large intestine?
A
- Ascending
- Transverse
- descending
- sigmoid (near anus)
