Neurons and Synapses: Their Structure and Function

CHAPTER THREE: NEURONS, SYNAPSE

The Synapse and Pharmacology

NEURONS

· Specialized cells for the reception, conduction, and transmission of electrochemical signals

· Many sizes and shapes

- There are about one hundred billion neurons in the nervous system.

- Neurons are some of the longest-lived cells in the body.

- Neurons are irreplaceable.

- Neurons have huge appetites. About twenty-five percent of the calories that you take in every day are consumed by your brain's activity.