Question

_________________________

5. Binding of neurotransmitter to the receptors on the motor end plate opens what type of ion channels? _________________________

6. Opening of these channels leads to _________________________ of the motor end plate.

7. How is the neurotransmitter removed from the synaptic cleft?

8. As a result of question 6, an action potential is propagated along the _________________________ of the muscle cell and down the _________________________ into the cell.

9. The result of this action potential releases what ion from the terminal cisterna

Answer 1

5. Chemically - gated

6. Depolarization

7. acetylcholinesterase

8. Sarcolemma, T- tubules

9.calcium channels

At the neuromuscular junction (synapse), information is transformed from one nerve to muscle fiber through means of chemical transmission called neurotransmitters.

At the synapse presynaptic neuron releases neurotransmitters which is present in the synaptic vesicles through the action of acetylcholinesterase.

synaptic vesicles ruptures and releases neurotransmitters on to the motor end plate.

On the motor end plate chemically gated channels will opened and depolarization occurs.

So that nerve impulses moves along the sarcolemma of the muscle cell and T-tubules of cell.