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Seizure

Seizure Overview

Abnormal electrical activity in the brain triggers seizure activity. A person may have a seizure disorder (epilepsy) and require medications. Other factors such as hypoglycemia (low blood sugar), which is a diabetic reaction, may cause seizures. Meningitis or a head injury may also cause a seizure.

Fainting can also cause a series of jerking movements as the person loses consciousness. These movements do not necessarily indicate a seizure.



Next: Seizure Symptoms »

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Transient Ischemic Attack (TIA) Overview

The control centers of the brain

The brain controls how our body functions, how we think, how we see, how we talk, and how we move.

  • The right side of the brain controls the left side of the body, and the left side of the brain controls the right side of the body. This includes movement and sensation.

  • Speech centers usually located in the Broca's area on the left side of the brain.

  • Vision is controlled by the back of the brain in the occipital lobes.

  • The carotid arteries provide the majority of the blood supply to these parts of the brain (anterior circulation).

  • Balance and coordination are controlled by the cerebellum, or the base of the brain, and its blood supply comes from the vertebral arteries located in the bony canals in the back of the vertebral column (posterior circulation)./l...


Read the Transient Ischemic Attack (Mini-Stroke) article »



Read What Your Physician is Reading on eMedicine

Seizures in the Emergency Department »

Seizures are a common cause of visits to the emergency department (ED).

Read More on eMedicine »

Medical Dictionary