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Mid-Term Science Review

Across
Produces enzymes that break down fat
A pigment that colors the skin
Finger-like structures that increase the surface area of the small intestine
Outer layer of skin
Divides heart ventricles
A disease that makes bones easier to break
Windpipe
A place where gases can be moved between air and blood
Protects heart and lungs
Carries blood away from the heart
In bones, produces blood cells
Makes bile
Down
Connects arteries and veins
Carries nutrients through blood vessels
Carries blood to the heart
A protein that contains iron
Muscle contractions in the esophagus
The maintenence of stable internal conditions
Circular muscle
Protects the edge of the bone
Process of stomach
Makes bones strong
Attaches a muscle to a bone
Allows sweat to reach the skin
Second layer of skin