Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
26 Cards in this Set
- Front
- Back
mastication
|
mechanical breakdown, chewing
|
|
salvary amylase
|
water solution, contains enzymes- breaks down carbs
|
|
Mouth and Teeth
|
1.mastication
2.saliva/salivary amylase 3.cleans teeth 4.neutralizes acids |
|
papillae
|
small projections on surface of tounge
|
|
Tounge
|
1.papillae
2.taste buds (sweet, sourt, salty, bitter) |
|
bolus
|
ball of food
|
|
pharynx
|
back of the throat
|
|
uvula
|
covers opeining to naval passages
|
|
epiglottis
|
covers trachea
|
|
Swallowing
|
1.food into bolus
2.pused to phayrnx 3.uvula 4.epiglottis 5.stop breathing momentarily |
|
peristalsis
|
involuntary muscle contractions, moves food
|
|
Esophogus
|
tube from pharynx to stomach
uses peristalsis |
|
functions of stomach
|
1.temporary holding storage
2.mix food and gastric juices into chyme 3.control rate at which food enters small intestine |
|
Sphincters
|
muscle moves bolus/chyme from one region to another, helps prevent back flow
cardiac: entrence to stomach pyloric: exit of stomach |
|
gastric juices
|
HCl, digestive enzymes, mucas
|
|
Digestive Processes
|
1.gastric juices -start the process
2.muscle contractions mix food w/gastric juice and move it to small intestine 3.chyme 2 small intestine by peristalsis 4.little absorbed but alcohol and asprin can be |
|
Functions of liver
|
1.produce bile (stored in gallbladder)
2.glucose -->glycogen 3.maintain level of glucose in blood 4. removes drugs 5.stores vitamins |
|
Small Intenstine parts
|
1.duodenum: chyme enters here, bile secreted here, enzymes from pacreas secreted
2.jejunum: middle part 3.ileum: opens to large intestine |
|
process in small intestine
|
1.peristalsis moves cyme (3-5 hrs)
2. chemicals from glands, liver, pancreas compelte breakdown |
|
Villi
|
finger like projections
increase surface area 600X digested food absorbed through capillaries undigested food moved by peristalsis to large intestine |
|
Large Intestine
|
1.absorbs water and electrolytes
2.eliminates undigested food 3.makes feces 4.leaves through rectum and anus |
|
Gallbladder
|
sac under liver
duct that leads to duodenum stores bile releases bile |
|
Pancreas
|
1.secretes insulin
2.secretes digestive enzymes: trypsin, amylase, lipase 3. all relased into duodenum |
|
trypsin
|
breaks down proteins
|
|
amylase
|
breaks down carbs
|
|
lipase
|
breaks down fats
|