Digestive System/Circulatory System

__ added by pancreas which speeds up breakdown reactions

Enzymes

when nutrients in bloodstream travel through vessels to __ the initial screening is done by __

Liver, liver cells

where does water absorption occur

Large intestine(colon)

55% Liquid portion of blood, mostly made of water

Plasma

3% Protect the body from infection

White blood cells

1% help blood clotting

Platelets

41% contain hemoglobin, which carries oxygen

Red blood cells

40% red blood cells

Erythrocytes

White blood cells (3% of blood cells)

Leukocytes

Carries blood away from the heart to the organs and tissues

Arteries

Carry blood from the body tissues to the heart

Veins

Single layer of endothelial cells that are the most numerous blood vessels in an animals body

Capillaries

Supplies the blood only to the lungs

Pulmonary Circut

Supplies all the cells, tissues, and organs of the body with oxygenated blood and returns deoxygenated blood to the heart

Systemic Circuit

when the heart contracts and pushes blood out into the rest of the body

Systole

When the heart relaxes and refills with blood

Diastole