Most cardiac arrests occur when a diseased heart's electrical system malfunctions. This malfunction causes an abnormal heart rhythm such as ventricular tachycardia or ventricular fibrillation. Some cardiac arrests are also caused by extreme slowing of the heart's rhythm
To start the process of fat digestion, the base of the tongue secretes an enzyme called lingual lipase. Saliva and other fluids blend with food to form lumen.
