Where is butyrylcholinesterase located in the body?

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Multiple Choice

Where is butyrylcholinesterase located in the body?

Explanation:
Butyrylcholinesterase is a plasmatic enzyme produced by the liver and circulating mainly in plasma. This localization is why its activity is measured in blood tests and why deficiencies affect how long certain ester-based drugs (like succinylcholine) act. It’s distinct from acetylcholinesterase, which is concentrated at cholinergic synapses in the brain and at neuromuscular junctions; BuChE is not primarily found in brain, muscle, or other tissues.

Butyrylcholinesterase is a plasmatic enzyme produced by the liver and circulating mainly in plasma. This localization is why its activity is measured in blood tests and why deficiencies affect how long certain ester-based drugs (like succinylcholine) act. It’s distinct from acetylcholinesterase, which is concentrated at cholinergic synapses in the brain and at neuromuscular junctions; BuChE is not primarily found in brain, muscle, or other tissues.

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