©Sheri Amsel www.exploringnature.org

Anatomy of the Heart

right pulmonary artery

superior vena cava

right atrium

tricuspid valve

right ventricle

inferior vena cava

venous blood to lungs throughleft pulmonary arteries

oxygenated blood from lungsthough left pulmonary veins

aorta

right atrium

bicuspid valve

left ventricle

papillary muscles (valve function)

thoracic aorta

©Sheri Amsel www.exploringnature.org

Blood Flow Through the Heart

right pulmonary artery

superior vena cava

right atrium

tricuspid valve

right ventricle

inferior vena cava

venous blood to lungs throughleft pulmonary arteries

oxygenated blood from lungsthough left pulmonary veins

venous blood from the head and upper body

venous blood from the lower body

aorta

right atrium

bicuspid valve

left ventricle

papillary muscles (valve function)

oxygenated blood to the lower body

oxygenated blood to head and upper body

thoracic aorta