Nursing : Heart Anatomy and Physiology

Which of the following is an atrioventicular valve ?

• Aortic Valve

• Pulmonary Valve

• Mitral Valve

• Venous valve

Initial electrical signal is fired from?

• AV node

• Purkinje fibers

• Bundle of His

• SA node

What causes a QRS wave in an ECG?

• Atrial contraction

• Ventricular contraction

• Atrial repolarization

• Ventricular depolarization

Which of the following structure carries oxygenated blood from lungs to heart ?

• Pulmonary vein

• Pulmonary artery

• Aorta

• Subclavian artery

Which of the following arteries supplies the heart?

• Cardiac artery

• Hypoglossal artery

• Ductus arteriosus

• Coronary artery