Digestive SystemVocabulary 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)

PB 09

Remember to wait for the vocabulary word to pop up! Can you guess it before it comes up?

Digestive SystemThis 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

EsophagusThe 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

PeristalsisThe process of wave-like muscle

contractions of the alimentary tract that moves food along.

http://img.tfd.com/vet/thumbs/gr294.jpg

LiverAccessory 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

MucusHydrochloric AcidPepsin (enzyme)

Three substance produced in the stomach to aide in chemical digestion

ChymeFood that has arrived at the stomach and

is mixed with HCL and enzyme

http://blog.lib.umn.edu/trite001/pstl1082anatomy/P1060735.jpg

GallbladderAccessory organ that stores bile for

release in the small intestine

http://www.organ-ized.org/A4pancre.jpg

Small IntestineFunctions 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

PancreasAccessory 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 IntestineOrgan 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