It is positive feedback mechanism
Because the nerves in your skin shoot a message of pain to your brain. The brain then sends a message back telling the muscles in your hand to pull away.
Hope it helped. :)
Answer:
can you write it again because you are missing some words
Answer:
1.Synapse
2. Sodium potassium
Explanation:
the synapse is the space between two neurons also where neurotransmitters are transfered and where action potential takes place which NA k pump is needed.
Based on this action, phentolamine mesylate will prevent the vasoconstriction and tissue necrosis.
<h3>What is the purpose of phentolamine mesylate?</h3>
The first therapeutic treatment for the reversal of soft-tissue anesthesia brought on by an intraoral submucosal injection of a local anesthetic containing a vasoconstrictor is phentolamine mesylate (OraVerse), a nonselective a-adrenergic blocking medicine.
<h3>Phentolamine mesylate is what kind of medication?</h3>
A class of medications known as Alpha Blockers, Antihypertensives, and Extravasation Antidotes includes phentolamine mesylate for injection.
<h3>What is the duration of phentolamine?</h3>
Phentolamine reaches its peak serum concentrations 0.25 to 0.75 hours after oral dosing. The average half-life of elimination is 2 hours, and the duration of the effect after administration is 1 to 2 hours.
learn more about vasoconstriction here
<u>brainly.com/question/13258282</u>
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