Student Objectives

Identify the conduction system of the heart.

• Sinoatrial node, Atrioventricular node, Bundle of His, Purkinje fibers

• Sinoatrial node, Atrioventricular node, Bundle of His

• Atrioventricular node, Bundle of His, Purkinje fibers

• Sinoatrial node, Purkinje fibers

The Pulmonary Arteries are:

• blood vessels that carry oxygenated blood from the lungs to the heart.

• blood vessels that carry deoxygenated blood from the heart to the lungs.

• blood vessels that carry oxygenated blood from the heart to the body.

• blood vessels that carry deoxygenated blood from the body to the heart.

The Cardiac Cycle is:

• a continuous process of blood circulation in the body

• a single heartbeat

• the process of breathing

• the digestion of food

Atrial Systole is a phase of the cardiac cycle where:

• the atria contract to push blood into the ventricles

• the ventricles contract to push blood into the atria

• the heart is at rest

• the atria and ventricles contract simultaneously

Ventricle Systole is:

• the contraction of the heart's ventricles

• the relaxation of the heart's ventricles

• the contraction of the heart's atria

• the relaxation of the heart's atria

The Cardiac Conduction System is responsible for?

• Pumping blood throughout the body

• Regulating the heartbeat

• Filtering blood

• Producing blood cells

What are Semilunar Valves?

• Valves located between the atria and ventricles

• Valves located between the ventricles and major arteries

• Valves located in the veins

• Valves located in the lymphatic system

What is the size of the heart compared to?

• A basketball

• A fist

• A football

• A tennis ball

Where is the heart located?

• Above the lungs

• Between the lungs in the center

• Below the diaphragm

• To the left of the lungs

What is the function of the endocardium?

• A) Lines the interior heart

• B) Thickest layer; muscle

• C) Thin outer layer