Page 39 - Science Course 2 (Book 1)

Mo2-L2a: Digestive System: Absorption and Elimination

Processing Nutrients Muscles that surround
the stomach contract
The digestive system, the and move food to the
circulatory system, and the small intestine. These
muscular system work together contractions are called
to process and obtain nutrients peristalsis.
from food.

The skeletal system, the The circulatory system works with
endocrine system, and the the small intestine and gets nutrients
lymphatic system work with to the rest of the body.
the digestive system and
process the nutrients from Nutrients are absorbed by small
food. finger-like projections, called villi, in
the small intestine.

The villi have blood vessels inside
them. Nutrients enter these blood
vessels and are then transported to
the rest of the body.
Food enters the body through the digestive system
and is broken down into nutrients that can be
absorbed into the body.
liver

Stomach
gallbladder Pancreas Small Large
Intestine Intestine
duodenum
duodena jejunal left colic flexure
junction
transverse
ascending colon Appendix Rectum
colon
jejunum
Key Concept
descending
colon Digestive System: Absorption and Elimination
cecum
How are nutrients processed in the body?
ileum
appendix sigmoid
colon
rectum
anal
canal

The muscular system is needed to get food
through the digestive system.

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