EKG Ch.1

How many layers does the heart have?

• 4

• 5

• 3

• 6

The outermost layer of the heart:

• epicardium

• myocardium

• endocardium

• pericardium

Chamber that receives blood from the body

• L atrium

• R atrium

• L ventricle

• R ventricle

What color is deoxygenated blood?

• bright red

• blue

• dark blue

• dark maroon

What color is oxygenated blood?

• bright red

• dark red

• dark blue

• bright maroon

What is the purpose of the heart valves?

• prevent a stroke

• prevent backflow of blood

• prevent bradycardia

• prevent tachycardia

The heart beats or at work:

• diastole

• systole

• diastasis

• dyastole

the heart at rest or relaxed:

• diastasis

• dyastole

• systole

• diastole

Name the four heart valves:

myocardial infarction means

• stroke

• heart attack

• syndrome

• facial paralysis