Acetylcholine (ACh)

Definition

A type of neurotransmitter involved in many functions including muscle stimulation, memory formation and learning.

Related terms

Cholinergic Neurons: These are neurons that primarily use acetylcholine as their neurotransmitter.

Neuromuscular Junction: This is a synapse between a motor neuron and skeletal muscle where acetylcholine plays a key role in muscle contraction.

Alzheimer's Disease:

A progressive disease that destroys memory and other important mental functions. Acetylcholine levels are often found to be significantly reduced in Alzheimer's patients.