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Digestive System
Vocabulary Review
The Living Environment - NYS 1.2 – The student
should be able to describe and explain the
structures and functions of the human body at
different organizational levels (for example,
systems, tissues, cells, organelles)
Remember to wait for the vocabulary word to pop up! Can you guess it before it comes up?
09
Digestive System
This system’s function is to convert foods
into simple molecules that can be
absorbed and used by cells
Bolus
Food that has been mechanically broken
down
http://www.nature.com/bdj/journal/v189/n8/thumbs/4800787-f5.jpg
Esophagus
The tube that is the passageway from the
mouth to the stomach.
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http://digestive.niddk.nih.gov/ddiseases/pubs/gerinchildren/images/fullbody-LES2.gif
Peristalsis
The process of wave-like muscle
contractions of the alimentary tract that
moves food along.
http://img.tfd.com/vet/thumbs/gr294.jpg
Liver
Accessory organ that is located just above
the stomach that produces bile (a fluid
with lipids and salts)
http://barrydean.files.wordpress.com/2007/09/liver2.jpg
Stomach
Large muscular sac that continues the
mechanical digestion of food
Mucus
Hydrochloric Acid
Pepsin (enzyme)
Three substance produced in the stomach
to aide in chemical digestion
Chyme
Food that has arrived at the stomach and
is mixed with HCL and enzyme
http://blog.lib.umn.edu/trite001/pstl1082anatomy/P1060735.jpg
Gallbladder
Accessory organ that stores bile for
release in the small intestine
http://www.organ-ized.org/A4pancre.jpg
Small Intestine
Functions to the re-absorption of minerals,
vitamins and water, as well as, digestion (finish
digestion of proteins and carbohydrates).
Between stomach and large intestine.
http://www.scoe.com/images/Stomach1.jpg
Pancreas
Accessory organ that secretes trypsin,
lipase and amylase to aide in the
breakdown of proteins, fats and starch
http://www.organ-ized.org/A4pancre.jpg
Large Intestine
Organ that removes water from the
undigested materials that pass through
it. Collects waste (feces) and
responsible for expulsion from the body.
http://graphics8.nytimes.com/images/2007/08/01/health/adam/8832.jpg