The right atrium receives deoxygenated blood from the superior vena cava (SVC), the inferior vena cava (IVC), the coronary sinus (covered by the Thebesian valve), and the Thebesian veins.

The right hemidiaphragm is usually higher than the left hemidiaphragm.

Diastole represents the period of time when the ventricles are contracting.

Which subtype of emphysema is most commonly associated with cigarette smoking?

The AV node is the electrical pacemaker of the heart.

Non-atopic asthma…

List four non-modifiable risk factors for atherosclerosis.                                        

The right ventricle has thinner walls than the left ventricle due to increased right-sided pressures compared to the left ventricle.

Cannonball lesions are a sign of primary lung cancer.

Which is NOT a function of the paranasal sinuses?