Question

A (n) ________, or convulsion, is a series of violent and involuntary contractions of the muscles; it is usually related to brain malfunctions that can result from diseased or injured brain tissues.

Answer 1

Answer:

seizure

Explanation:

The Brain consists of numerous nerve cells that sends and receives electrical signals, these signals are vital for the communications between the nerve cells.

On the other hand a seizure is a sudden or an uncontrolled electrical changes in the brain.

Now, when seizure occurs there is a constriction between the nerve endings adjacent to another nerve cells in the brain thereby creating contraction of muscles, as such these leads to disease or injuries in the brain.

Answer 2

Answer: Seizure

Explanation: Seizure is an uncontrolled or uncoordinated electrical activity in the brain. The central nervous system is made up of the brain and the spinal cord which are composed of neurons that conduct and transmit electrical/nerve impulses to the brain. In diseased or injured brain tissues, there is abnormal synchronization of these electrical signals by the neurons which results in seizures or convulsions.