Digestive System Lecture Notes

Vocabulary flashcards covering the key terms and biological processes of the digestive system based on the provided lecture notes.

Chyme

The semi-liquid mixture of partially digested food and stomach Juises that move into the small intestine

Amylase

An enzyme that breaks down carbohydrates into simple sugar

Absorption

The process of moving digested nutrients into the blood stream.

Peristalsis

Wave-like muscle contractions that push food through the digestive tract

Lipase

An enzyme that breaks down fats into fatty acids and glyceral

Enzymes

Proteins that speed up chemical reactions, including digestion

Villi

Finger-like projections in the small intestine that increas nutrient absorption

Mechanical digestion

The physical breakdown of food by chewing grinding , and churning. for absorption

Micro-vili

Tiny hair like structure on villi that further increase the surfac area

Chemical Digestion

The breakdown of food into simpler mastecules using enzymes.

Protease

An enzyme that breaks down protiens into amino acids

Bolus

A soft ball of chewed food mixed with salive, meady to be swa llowed.