NASM Chapter 3

Which of the following is part of the cardiovascular system?

• Trachea

• Bronchi

• Blood

Which of the following is referred to as the pacemaker for the heart?

• SA Node

• Pectoral Node

• AV Node

This mass of cardiac muscle fibers receives heartbeat impulses from the sinoatrial node (SA) and directs them to the walls of the ventricles is called the _____.

• Sinoatrial node (SA node)

• atrioventricular node (AV node)

• aortic arch

Why is the left side of the heart referred to as the systemic side?

• It delays impulses before allowing them to move on to the ventricles.

• It receives deoxygenated blood from the body

• It pump oxygenated blood to the rest of the body

The inferior chamber of the heart that receives blood from its corresponding atrium and, in turn, forces blood into the arteries is called the _____.

• capillary

• ventricle

• vena cava

Which of the following is a function of a heart valve?

• It prevents backflow or spillage of blood back into the chambers.

• It carries blood away from the heart.

• It helps exchange water and chemicals between the blood and the tissues.

Identify the term that refers to the amount of blood pumped out of the heart with each contraction.

• Heart rate

• Stroke volume

• Cardiac output

What is the average resting heart rate for an untrained adult?

• 50-60 beats per min

• 30-40 beats per min

• 70-80 beats per min

Which of the following is a way to measure heart rate but, per NASM, not an appropriate way to monitor heart rate on a client?

• the use of the carotid artery in the neck to measure the pulse rate.

• placing the index and middle fingers around the palm side of the wrist

• counting the number of beats in 60-second intervals

_____ is a life-sustaining fluid that supplies the body’s organs and cells with oxygen

• Bile

• Blood

• Saliva