Synapses

Definition

Synapses are specialized junctions between neurons that facilitate the transmission of electrical or chemical signals. They play a crucial role in neural communication and overall nervous system function.

5 Must Know Facts For Your Next Test

1. Synapses can be classified as either chemical or electrical, with chemical synapses being more common in the human nervous system.
2. Neurotransmitters are chemical messengers released at synapses to transmit signals from one neuron to another.
3. The synaptic cleft is the small gap between the presynaptic and postsynaptic neurons where neurotransmitter release occurs.
4. Synapse dysfunction can lead to various neurological disorders, including Alzheimer's disease and epilepsy.
5. Synaptic plasticity, the ability of synapses to strengthen or weaken over time, is essential for learning and memory.

Related terms

Neuron:

A nerve cell that transmits electrical impulses through the nervous system.

Neurotransmitter: Chemical substances that transmit signals across a synapse from one neuron to another.

Synaptic Cleft: The small gap between the presynaptic and postsynaptic neurons where neurotransmitter release occurs.