Download Digestive System Process Grid student version

Digestive System Process Grid
Students will understand the digestive system works to make food usable for cell and works with the circulatory system.
http://kidshealth.org/kid/htbw/heart.html#
System Parts
Specific Functions
Interdependency
(How they work and what they do.)
(RELATIONSHIP TO OTHER SYSTEMS)
 mechanical digestion – chop,
grind, chew
Mouth

teeth

tongue
INTERESTING FACTS

blood vessels in the
mouth

Food stays in mouth about 2 minutes

blood vessels in the
esophagus

peristalsis is responsible for the rumbling
sounds in digestive tract

food stays here from 4-8 seconds; 1-2
seconds for soft food

stomach protected from HCl by mucus layer

food stays in stomach about 4 hours

becomes thick liquid
 chemical digestion –

Esophagus

connected to mouth

muscles push food down

peristalsis

Stomach
saliva - enzyme
chemical breakdown

enzymes

hydrochloric acid

blood vessels in
stomach
Pictures
Small
Intestine
Large
Intestine

breakdown process
finished here

blood vessels in small
intestine

thick stomach liquid
mixed with bile and other
enzymes

nutrients pass into
blood stream

Last 20 ft. passes through
walls into blood

water


parts of food not
digested
most water absorbed
into blood through
intestine walls

produces bile to break up
(chemical) fats in food

Bile stored in gall
bladder

produces enzymes

used in small intestine

stores bile made in liver

ejects bile into small
intestine

produces saliva for
chemical breakdown

helps in chewing ,
swallowing, & chemical
breakdown

takes ~ 12 hours for food to pass through

Leftover waste, urine and feces, go bye-bye

You can live without gall bladder
Additional Organs
 Liver
 Pancreas
 Gall Bladder
 Salivary
Glands