The Circulatory System

Where does blood go after the right atrium?

• left atrium
• left ventricle
• right ventricle
• aorta

Deoxygenated blood enters the right atrium from the bottom of the heart via the

• inferior vena cava

• superior vena cava

• pulmonary veins

Identify #2

• Heart

• Right Ventricle

• Left Atrium

• Left Ventricle

A flap of tissue that prevents blood from flowing backward

• Aorta
• Atrium
• Septum
• Valve

Carries the blood from the ventricle to the body

• Aorta
• Atrium
• Valve
• Septum

How many chambers does the heart have ? 

• 4
• 6
• 3
• 1

Identify this vessel

• Aorta

• Pulmonary Vein

• Superior Vena Cava

• Inferior Vena Cava

What does Deoxygenated mean?

• Oxygen-rich
• Blood flow
• Oxygen-poor
• Water Flow

Identify the heart chamber

• Left atrium

• Right atrium

• Left ventricle

• Right ventricle

The heart is the main organ in the _________ system

• respiratory
• endocrine
• circulatory
• nervous