Tech Prep Cardiovascular System

What are the four chambers of the heart?

• Right atrium, left atrium, right ventricle, left ventricle

• Superior atrium, inferior atrium, right ventricle, left ventricle

• Right atrium, left atrium, superior ventricle, inferior ventricle

• Right ventricle, left ventricle, anterior atrium, posterior atrium

What is the function of the heart valves?

• To keep blood flowing in the correct direction

• To pump blood out of the heart

• To control heart rate

• To oxygenate the blood

Which chambers are connected by the atrioventricular (AV) valves?

• A) Atria and ventricles

• B) Left atrium and right atrium

• C) Left ventricle and right ventricle

• D) Arteries and veins

What are heart muscle cells called?

• Myocytes

• Fibroblasts

• Cardiomyocytes

• Endothelial cells

What happens during the cardiac cycle?

• Blood flows into the heart and is pumped into the lungs and then to the peripheral tissues

• The heart only pumps blood to the lungs

• Blood flows only from the left side of the heart to the right side

• The heart only receives blood from the peripheral tissues

Tags

NGSS.HS-LS1-3

What is cardiac output?

• The amount of blood pumped by the heart per minute

• The amount of oxygen in the blood

• The speed of blood flow

• The pressure of blood in the arteries

What two factors determine cardiac output?

• Heart rate and stroke volume

• Blood pressure and heart rate

• Stroke volume and blood volume

• Blood pressure and blood volume

Which vessels bring deoxygenated blood back to the heart?

• Veins

• Arteries

• Capillaries

• Arterioles

Which vessels take deoxygenated blood to the lungs?

• Pulmonary arteries

• Pulmonary veins

• Aorta

• Vena cava

Which vessels return oxygenated blood from the lungs back to the heart?

• Pulmonary arteries

• Pulmonary veins

• Aorta

• Vena cava