Synaptic Organization Of The Nervous System

This subject lies at the heart of the organization of the human or any other nervous system. A synapse, by definition, includes presynaptic and postsynaptic membranes separated by a narrow cleft about 1220 nm across. As noted, EM demonstration of this cleft provided definitive proof of the anatomical tenet of the neuron doctrine: nerve cells are separate. The cells that face each other across this cleft may be two neurons, a neuron and a skeletal or smooth muscle fiber, or a neuron and a gland cell (usually a smooth muscle fiber in that gland).

Conquering Fear In The 21th Century

Conquering Fear In The 21th Century

The Ultimate Guide To Overcoming Fear And Getting Breakthroughs. Fear is without doubt among the strongest and most influential emotional responses we have, and it may act as both a protective and destructive force depending upon the situation.

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