The answer is C cardiopulmonary resuscitation.
Answer:
As you age, your brain and nervous system go through natural changes. Your brain and spinal cord lose nerve cells and weight (atrophy). Nerve cells may begin to pass messages more slowly than in the past. Waste products can collect in the brain tissue as nerve cells break down.
Explanation:
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This will result to an excitatory postsynaptic potential ((EPSP)
Neurotransmitters are those chemical messages that transmits signals from nerve cells to their target cells.
Neurotransmitters are packed inside vesicles at the presynaptic nerve terminal.
The arrival of an action potential at this terminal leads to opening of Voltage gated channels.
This leads to a change in membrane voltage of the postsynaptic cell following the influx of positively charged ions (sodium ion) into the cell which is called the excitatory postsynaptic potential.
Therefore, excitatory postsynaptic potential ((EPSP) occurs when a neurotransmitter opens a chemically gated ion channel that allowing sodium to enter the postsynaptic cell.
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