Digestive System

Question 1

Organs & Pathway

Answer 1

Mouth: food is broken down
Esophagus: brings food to stomach
Stomach: holds & churns food
Small intestine: absorbs nutrients
Large intestine: absorbs water & salts and gets rid of leftover waste
Rectum: stores waste
Anus: expels waste

Question 2

4 stages of digestion and where they occur

Answer 2

Ingestion: food into mouth
Digestion: food breakdown
Absorption: food moving to the circulatory system
Egestion: removal of solid waste

Question 3

Accessory organs & their functions

Answer 3

Liver: produces bile
Gallbladder: storage organ for bile
Pancreas: produces insulin, enzymes, and sodium bicarbonate (HCO3-)

Question 4

Chemical vs. Mechanical Digestion

Answer 4

Mechanical: physical breakdown of food (chewing)
Chemical: chemical breakdown (acid in stomach)