Heart/Vessels Cardiovascular System Quiz25

The tip of the heart is called the:

• Valve
• Auricle
• Apex
• Base

How many times does the heart beat per minute (on average)?

• 30
• 50
• 72
• 100

What covers the surface of the heart? provides protection

• Endocardium
• Myocardium
• Pericardium
• Epithelium

What is the second layer of the heart? thick, twisting bundles of cardiac muscle to provide contractions

• Endocardium
• Myocardium
• Pericardium
• Epicardium

What is the third (inner) layer of the heart? thin layer lining the heart chambers

• Pericardium
• Endocardium
• Myocardium
• Epidermis

What are the two main circuits of blood flow that circulate blood back to the heart?

• Renal and digestive
• Nervous and endocrine
• Pulmonary and systemic
• Arterial and venous

Which cardiovascular circuit carries blood from the heart to the body tissues and back.-Drops off O2 and picks up CO2.

• systemic
• arterial
• pulmonary
• venous

Which cardiovascular circuit carries blood from the heart to the lungs and back-Picks up O2 and releases CO2?

• systemic
• arterial
• pulmonary
• venous

What gas is released in the lungs?

• Oxygen
• Carbon dioxide
• Nitrogen
• Hydrogen

What gas is picked up in the lungs?

• Oxygen
• Carbon dioxide
• Nitrogen
• Hydrogen