Refers to the study of why things occur.

A loss of the ability to produce and/or comprehend language.

Neurological sign and symptom consisting of gross lack of coordination of muscle movements.

Cell debris, cholesterol or some other substance that builds up in artery walls to for a plaque.

Cardiac arrhythmia (abnormal heart rhythm) that involves the two upper chambers (atria) of the heart.

Lower part of the brain, adjoining and structurally continuous with the spinal cord.

Region of the frontal associated with Broca’s aphasia.

Region of the brain that plays an important role in the integration of sensory perception, coordination and motor control.

Largest part of the brain, also known as the telencephalon.

Lipidic, waxy alcohol found in the cell membranes and transported in the blood plasma. High levels in circulation are associated with atherosclerosis.

Circle of arteries that supply blood to the brain. It is named after Thomas Willis (1621–1673), an English physician.

Motor speech disorder resulting from neurological injury, characterised by poor articulation.

An object (the embolus, plural emboli) migrates from one part of the body (through circulation) and causes a blockage (occlusion) of a blood vessel in another part of the body.

The loss of blood from the circulatory system.

Collection of blood outside the blood vessels.