Cardiovascular System

What is the name of the bundle that the electrical signal travels down after the atrioventricular node in the heart?

• Atrioventricular Bundle (Bundle of His)

• Purkinje fibers

• Sinoatrial node

• Bachmann's bundle

What is the function of the Purkinje fibers in the ventricular myocardium?

• They stimulate ventricular systole.

• They initiate atrial contraction.

• They regulate heart valve opening.

• They produce red blood cells.

How many types of blood vessels are there?

• Three

• Two

• Four

• Five

Name the three types of blood vessels.

• Arteries, Capillaries, Veins

• Arteries, Nerves, Veins

• Veins, Muscles, Capillaries

• Arteries, Bones, Capillaries

What is the lumen in blood vessels?

• The channel within these vessels through which blood flows.

• The outermost layer of the blood vessel wall.

• A type of blood cell found in vessels.

• A valve that prevents backflow of blood.

What is the function of arteries?

• To carry blood away from the heart.

• To carry blood to the heart.

• To filter waste from the blood.

• To produce red blood cells.

The pulmonary arteries carry de-oxygenated blood from the _______ to the lungs.

• right ventricle

• left atrium

• left ventricle

• right atrium

The heart’s natural pacemaker is termed the:

• sinoatrial node (SA)

• atrioventricular node (AN)

• Purkinje fibers (PF)

This structure is responsible for setting the entire pace of the heart beat

• SA Node
• AV Node
• Purkinje Fibers
• Bundle Branches