Wolff-Parkinson-White syndrome (WPW) is a pre-excitation syndrome of intermittent tachycardia that results from an accessory pathway (the bundle of Kent) directly connecting the atria and the ventricles.

The cranial nerves are numbered sequentially in relation to their position from the front of the brain to the back.

Tetralogy of Fallot (TOF) is the most common cyanotic congenital heart defect.