Acetylcholine
Definition
Acetylcholine is a neurotransmitter involved in muscle activation, memory, and learning. It plays a critical role in both the central and peripheral nervous systems.
5 Must Know Facts For Your Next Test
- Acetylcholine is the primary neurotransmitter for the parasympathetic nervous system.
- It is released by motor neurons to activate muscles.
- Acetylcholine is broken down by the enzyme acetylcholinesterase.
- Deficiencies in acetylcholine are linked to Alzheimer's disease.
- Drugs that inhibit acetylcholinesterase increase levels of acetylcholine and are used to treat myasthenia gravis.
Review Questions
- What role does acetylcholine play in muscle activation?
- How does acetylcholinesterase affect acetylcholine levels?
- Why might drugs that inhibit acetylcholinesterase be prescribed?
"Acetylcholine" appears in:
Subjects (3)
Related terms
Nicotinic Receptors: Receptors that respond to nicotine and acetylcholine, found in neuromuscular junctions.
Muscarinic Receptors: Receptors that respond to muscarine and acetylcholine, involved in parasympathetic activities.
Acetylcholinesterase Inhibitors: Class of drugs that prevent the breakdown of acetylcholine, increasing its availability.
