What condition can arise from blockage of a brain artery?

A blockage of a brain artery commonly leads to an ischemic attack, also known as a transient ischemic attack (TIA) or a stroke. This condition occurs when blood flow to a part of the brain is interrupted, resulting in a decrease of oxygen and nutrients to brain tissue. The sudden onset of neurological symptoms is typical, which may include weakness, speech difficulties, or vision problems, depending on which area of the brain is affected.

The term "ischemic" refers to a lack of blood supply, which is precisely what happens in this scenario. It is crucial to differentiate ischemic attacks from hemorrhagic strokes, which occur due to bleeding in the brain. Early intervention for ischemic attacks is vital to prevent permanent damage or a full-blown stroke.

In contrast, while a thrombus or embolism can contribute to ischemic attacks, they are not conditions that result directly from a blockage; instead, they are the types of clots that may cause such blockages. A thrombus is a clot that forms in a blood vessel, while an embolism refers to a clot that travels from elsewhere in the body to lodge within a brain artery. A hypertensive crisis, while a serious condition involving dangerously high blood pressure, does not specifically arise