Cardiac quiz

Blood vessel in which gas exchange occurs

• Artery

• Vein

• Capillary

• Aorta

Which of the following is correct about the differences between arteries and veins

• Arteries are the blood reservoir

• Arteries have valves to prevent the backflow of blood

• Arteries have a thicker muscle layer to withstand higher pressures

• Veins are made entirely of epithelial tissue + adipose tissue

Heart chamber that receives blood from the veins from all over the body

• Right atrium

• Left atrium

• Right ventricle

• Left ventricle

Heart valve that separates the left atrium from the left ventricle

• Pulmonary valve

• Tricuspid valve

• Aortic valve

• Mitral valve

Which of the following structures is the pacemaker of the heart?

• Sinoatrial node

• Atrioventricular node

• His Bundle

• Purkinje fibers

Which of the following structures is responsible for depolarizing the ventricles?

• Sinoatrial node

• Atrioventricular node

• His Bundle

• Purkinje fibers

What does the QRS complex represent on the ECG?

• Atrial depolarization

• Ventricular depolarization

• Ventricular repolarization

• Atrial repolarization

Which of the following is the universal donor blood type?

• O

• A

• B

• AB

If someone has the A antigen in the surface of their red blood cells, what antibodies will that someone have?

• A antibodies

• B antibodies

• A and B antibodies

• None

How does tobacco smoking contribute to developing a myocardial infarction?

• Tobacco smoke transforms into cholesterol and creates atherosclerotic plaques in the coronary arteries

• Tobacco smoke damages the atherosclerotic plaque and makes it more prone to rupture

• Tobacco smoke is not related to heart attacks, it's all a scam by the vape industry to bring down their competition

• Tobacco smoke becomes solid inside the heart and clogs up the coronary arteries