Idiopathic
- Cause unknown.
Infarct - An
area of tissue that dies due to a loss of blood
supply.
Infarction -
The formation of an infarct. see Infarct
Insulin - A
hormone, produced by some of the pancreatic glands,
which regulates the glucose metabolism.
Intracranial
- Within the skull.
Ischemia - Local
and temporary deficiency of blood supply due to
an obstruction. Ischemia of the heart is commonly
caused by coronary artery disease.