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What ions are important in muscle contraction and impulse conduction as an action potential reaches a synapse?
Sodium & Calcium.
At the synapse, or the motor end plate, acetylcholine opens sodium channels causing sodium influx into the muscle fiber causing depolarization.
This depolarization causes calcium released from the sarcoplasmic reticulum that initiates muscle contraction by activating sarcomeres.
What else can I help you with?
What minerals are needed for muscle contraction and conduction of nerve impulses?
Minerals such as calcium, magnesium, sodium, and potassium are essential for muscle contraction and nerve impulse conduction. Calcium is particularly important for initiating muscle contractions and transmitting nerve impulses, while magnesium, sodium, and potassium help regulate muscle relaxation and contraction as well as nerve impulse transmission.
What is the membrane of a nerve cell is comprised of?
Its main function is to propagate the action potential (the 'impulse') along the length of the axon.
Is the AV node the slowest conducting tissue in the cardiac conduction and contraction?
Yes. The AV node is the slowest conducting tissue of the heart. You can reason that the delay in the AV node exists to allow for maximal ventricle filling before contraction. After the AV node completes depolarization, the Perkinje fibers lay claim to the quickest conduction to best reach the ventricle muscle in one large burst providing maximal contraction. I hope this is helpful.
What is the importance of delay in the action potential in the AV node?
At the AV node, the impulse is delayed for about 0.1s, allowing the atria to respond and complete their contraction before the ventricles contract.
What is the difference between impulse conduction and transmission?
Impulse conduction refers to passage of impulse within the same cell. Where as transmission as the name implies, is concerned about passage of impulses either chemical or electrical from one cell to another.
What minerals are needed for muscle contraction and conduction of nerve impulses?
Minerals such as calcium, magnesium, sodium, and potassium are essential for muscle contraction and nerve impulse conduction. Calcium is particularly important for initiating muscle contractions and transmitting nerve impulses, while magnesium, sodium, and potassium help regulate muscle relaxation and contraction as well as nerve impulse transmission.
What is the membrane of a nerve cell is comprised of?
Its main function is to propagate the action potential (the 'impulse') along the length of the axon.
Is the AV node the slowest conducting tissue in the cardiac conduction and contraction?
Yes. The AV node is the slowest conducting tissue of the heart. You can reason that the delay in the AV node exists to allow for maximal ventricle filling before contraction. After the AV node completes depolarization, the Perkinje fibers lay claim to the quickest conduction to best reach the ventricle muscle in one large burst providing maximal contraction. I hope this is helpful.
What is impulse conduction?
Party of nervous
What is impulse conduction is fastest in neurons?
Impulses that travel along myelinated neurons are the fastest.
What impulse conduction is the fastest in neurons?
Axons conduct the nerve impulses. Dendrites receive the impulses. Possible the impulses go through the dendrites faster, though the synaptic cleft may slow this pathway. Dendrites are much shorter than axons.
What kind of neurons does impulse conduction occur in the fastest?
nig
What is the importance of delay in the action potential in the AV node?
At the AV node, the impulse is delayed for about 0.1s, allowing the atria to respond and complete their contraction before the ventricles contract.
What is the difference between impulse conduction and transmission?
Impulse conduction refers to passage of impulse within the same cell. Where as transmission as the name implies, is concerned about passage of impulses either chemical or electrical from one cell to another.
What features of nerves improve impulse conduction velocity?
myelin sheaths
Is the velocity of a nerve impulse greater than electrical conduction's?
yes
When current leaps across an insulating myelin sheath from node to node the type of impulse conduction is called what?
Saltatory Conduction
