Synaptic end bulb

Definition

A synaptic end bulb is a swelling at the end of an axon terminal of a neuron, where neurotransmitters are stored before being released into the synaptic cleft. It plays a crucial role in the transmission of nerve impulses from one neuron to another or to an effector cell.

Related terms

Neurotransmitter:

Chemical substances that transmit signals across a synapse from one neuron to another or to an effector site.

Synaptic Cleft:

A small gap between the synaptic end bulb of one neuron and the dendrite or cell body of another, across which neurotransmitters move.

Axon Terminal:

The very end part of an axon that establishes connections with other nerve cells or with effector organs and tissues