(5) life functions for multicellular organisms
GAS EXCHANGE
NUTRIENTS
WASTE REMOVAL
PROTECTION
COMMUNICATION
CARDIO = heart vascular = blood vessels
THREE PARTS OF CARDIOVASCULAR SYSTEM
BLOOD VESSELS
BLOOD about five litres… in you
PATH OF BLOOD START AT THE LUNGS to pick up oxygen
it follows this path in this order
lung
pulmonary veins
left atrium, left ventricle of the heart
aorta
arteries
capillaries
veins
superior and inferior vena cava
right atrium, right ventricle of the heart
lung
HOW DOES BLOOD MOVE THROUGH ARTERIES?
HOW DOES BLOOD MOVE THROUGH THE VEINS?
LABEL THE MAJOR ARTERIES AND VEINS