Sensory Strip Image #5: DESCRIPTION OF SYNAPTIC IONIC ACTION
INSIDE YOUR BRAIN'S CORTICAL SENSORY STRIP
SYNAPTIC IONIC ACTION INSIDE
YOUR BRAIN'S CORTICAL SENSORY STRIP
[1] Target Cell
[2] Closed Channel
[3] Receptors
[4] Open Channel
[5] Sodium Ions
The electrical and chemical process of transferring nerve impulses between neurons and among neurons and other neuronal networks is called a "synapse." Thus your synapses are "biological switches" that transmit "electro-chemical messages" to and from your brain and nervous system.
Each synapse is made up of two parts. One is a knoblike "synaptic bulb" at the end of the transmitting neuron. The other part is the "receptor region" on the membrane of the target cell. This diagram shows a synaptic bulb in action at the end of an "axon terminal fiber" releasing its sodium ions.