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Neuromuscular Junction and Curare Quiz

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Questions and Answers

Which type of neuromuscular blocker is curare?

Reversal blocker

Depolarizing blocker

Fasciculating blocker

Competitive blocker (correct)

What is the effect of succinylcholine on muscle paralysis?

Results in cessation of respiration (apnea) (correct)

Leads to immediate recovery of muscles in the limbs and trunk

Has no effect on muscle paralysis

Causes rapid relaxation of intercostal muscles and diaphragm

What is the effect of newer agents on the central nervous system (CNS)?

No effect on CNS observed (correct)

Induces hallucinations and delusions

Leads to enhanced cognitive function

Causes significant CNS depression

What is the clinical use of competitive neuromuscular blockers?

<p>Facilitation of surgical manipulation and intubation</p> Signup and view all the answers

What is the duration of action of succinylcholine?

<p>5 minutes</p> Signup and view all the answers

Study Notes

Neuromuscular Blockers

Curare is a depolarizing neuromuscular blocker.

Succinylcholine

Succinylcholine is a depolarizing neuromuscular blocker that causes muscle paralysis by initial contraction followed by flaccid paralysis.
The duration of action of succinylcholine is short, typically 4-6 minutes.

Newer Agents

The effect of newer agents on the central nervous system (CNS) is minimal or negligible.

Clinical Use of Competitive Neuromuscular Blockers

Competitive neuromuscular blockers are used clinically to produce muscle relaxation during anesthesia, particularly for surgical procedures that require muscle relaxation.

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Description

Test your knowledge of the neuromuscular junction and the history of curare. Learn about the early medicinal uses of curare and its classification as a competitive neuromuscular blocker.