Cardiovascular System Part 2

Supply blood directly to the heart tissue

• coronary arteries

• aorta

• pulmonary artery

• pulmonary trunk

Choose the correct sequence of blood flow through the heart

• right ventricle-->left ventricle-->aorta

• right atrium-->left ventricle-->aorta

• superior vena cava-->inferior vena cava-->left atrium

• right ventricle-->pulmonary trunk/arteries-->lungs

Heart sounds heard through a stethoscope are from

• contraction of the ventricles

• relaxing of the ventricles

• closing of the heart valves

• none of the above

The natural pacemaker of the heart

• AV Node

• SA Node

• Semilunar node

• Mitral node

Arrhythmia

• Heart murmur

• Heart attack

• An altered heart sound

• An altered heart rhythm

Abnormally fast heartbeat

• Tachycardia

• Flutter

• Bradycardia

• Fibrillation

Abnormally slow heart beat

• Tachycardia

• Heart Attack

• Bradycardia

• Fibrillation

Atrial fibrillation

• not life threatening

• potentially fatal

• emergency surgery required

• none of the above

Heart rate changes in response to

• physical exercise, metabolism, fight or flight

• physical exercise, metabolism, body temperature

• physical exercise, body temperature, fight or flight

• physical exercise, insomnia, electrolyte imbalance

Carry blood away from the heart

• arteries

• venules

• arterioles

• veins