Acetylcholine
Nicotien or anything chemical which stimulates the Nicotinic receptors.
Calcium ions
Muscle contractions would be prevented, causing paralysis.
Sarcolema receptors
acetylcholine as far as i know is a neurotransmitter that ativates the mscle cells.
It blocks the nicotinic cholinergic receptors on the muscle that normally bind the acetylcholine released by the motor neuron.
Different types of muscle contractions
Isotonic contractions. This happens when the muscle shortens as it contracts
nerve impulse
Yes
They stop the production of the enzyme in the body called cholineesterase which is released during muscle contractions and so it makes the muscle unable to move.
The strongest muscle contractions are normally achieved by increasing the stimulation up to the maximal stimulus. There are various classifications of contractions, including eccentric and concentric.