Heart

Your heart is an involuntary muscle that is always working.

• True

• False

The heart is made of which of the following types of muscles?

• Cardiac muscle

• Striated muscle

• Smooth muscle

• None of the above

What portion of the heart is supposed to be  the most muscular?

• upper
• lower
• septum

About how large is the human heart?

• the size of an onion
• the size of a fist
• 4.5 pounds

How many chambers does the heart have?

• 4

• 10

• 3

• 1

Where does your heart get oxygen?

• Lungs

• Mouth

• Toes

• Fingernails

2?

• Right Atrium
• Right Ventricle
• Left Atrium
• Left Ventricle

5?

• Aorta
• Pulmonary Valve
• Atrium
• Ventricle

3?

• Superior Vena Cava
• Right Pulmonary Vein
• Right Ventricle
• Right Atrium

What is the arrow pointing to?

• right atrium

• left atrium

• right ventricle

• left ventricle