Organ Systems Crossword

Organ that absorbs nutrients from food.
Organ system that breaks down food for cells to use.
Organ that pumps blood.
Organ that contains hydrochloric acid and breaks down food
A blood vessel that pumps blood away from the heart.
Small tubes within your lungs
Organ system that captures oxygen from the atmosphere.
Organ that reabsorbs water from food.
Groups of cells with a similar function that work together.
Basic building blocks of all living organisms.
structure where gas exchange occurs
Blood with high carbon dioxide concentration
Inelastic blood vessels that carry blood towards the heart
structure which prevents the back flow of blood
Side of the heart that receives and pumps oxygenated blood
Component of blood that carries oxygen and carbon dioxide
Structure in the small intestine that increases surface area for absorption
Organ that produces sodium bicarbonate which acts as a buffer
Involuntary muscle contractions that push food down the esophagus