Magma: Magma, molten or partially molten rock from which igneous rocks form. It usually consists of silicate liquid, although carbonate and sulfide melts occur as well. Magma
There are three main types of stroke: transient ischemic attack, ischemic, and hemorrhagic. Itâs estimated that 87 percent of strokes are ischemic. Doctors also call a transient ischemic attack (TIA) a warning or ministroke. A clot that temporarily blocks blood flow to your brain causes a TIA.
Brain cells in the area die from lack of oxygen. In another type of stroke, called hemorrhagic. (hem-or-AJ-ic) stroke, the blood vessel isn't blocked; it bursts, and blood leaks into the brain, causing damage. Strokes are more common in older people.