The cause of neuron cell death after a stroke usually involves
A) interruption of glycogen delivery to the cell.
B) reduced neuronal firing produced by tissue compression.
C) interruption of oxygen supplies to the nerve cell.
D) the loss of oxygen radicals within glial cells.
E) overstimulation of nerve cells by abnormally high synaptic levels of glutamate.

Question

Quizplus · Accepted Answer

Overstimulation of nerve cells by abnormally high synaptic levels of glutamate is the cause of neuron cell death after a stroke. Glutamate is an important neurotransmitter that is released by neurons to communicate with other neurons. However, after a stroke, the blood-brain barrier is disrupted, allowing excess glutamate to accumulate in the synaptic cleft, leading to an influx of calcium ions into the neuron and ultimately resulting in cell death.

The Cause of Neuron Cell Death After a Stroke Usually