Digestive System Flashcards
Salivary glands
Secrete saliva and contain amylase
Mouth
Mechanical- teeth
Chemical- saliva
Amylase
Breaks chemical bonds
Esophagus
Food tube
* peristalsis
Peristalsis
Moves bolus along digestive system
Cardiac sphincter
Closes esophagus after food enters stomach
Stomach
Chemical- pepsin
Mechanical- churn
Pyloric acid
Opens chyme so it can go to small intestine
Pancreas
- Like an endocrine gland
- Produce enzymes to help the chemical digestion in small intestine
-Produce sodium
bicarbonate(neutralize stomach acid
Liver
- produce bile (dissolves fats)
Small intestine
Mechanical- peristalsis, bile emulsified lipids
Chemical- pancreatic juice produce enzymes
**all digestion is finished
Large intestine
Removes water from undigested material
Regions of small intestine
Duodenum jejunum and ileum
Where are digestive enzymes secreted
Mouth stomach small intestine
If no stomach where would chemical digestion of protein take place
Small intestine
Human gastrointestinal tract
Esophagus
Intestinal fold of the earthworm and villi of the humans small intestine does what
Increase surface area
Lipase aids in the digestion of
Lipids
What is true about carb digestion
Oral cavity to small intestine
Glands in the esophagus are
Gastric and intestinal
Lymphatic vessels that extend into the villi are
Lacteals
Mechanical digestion
Increase surface area for enzyme
Where does peristalsis happen
Esophagus
Food includes nutrients and
Vitamins
