Assume you touch a hot stove with your finger and rapidly pull it away. Contract

Question

Assume you touch a hot stove with your finger and rapidly pull it away. Contraction of the biceps brachii muscle causes flexion at the elbow, whereas contraction of the triceps brachii muscle causes extension at the elbow. This particular reflex of pulling your finger away is called a spinal reflex: you do not have to even think about pulling your an off the stove for it to occur. Come up with an explanation as to what is happening at the neuromuscular junctions in both the biceps brachii and triceps brachii muscles. You should consider the action of the muscle is reflex with regards to which muscle is being stimulated to contract which muscle is being relaxed, and how each of these actions is accomplished with action potentials, neurotransmitters, and ligand-gated channels on the sarcolemma.

Explanation / Answer

In fact, the whole process involves some well-coordinated & well-organized actions of nervous system & muscular system. The whole process can briefly be outlined here as follows.

Broadly three types of event concur the whole process-

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