The Accompanying Figure Relates to Events at the Neuromuscular Junction

question 15

Multiple Choice

The accompanying figure relates to events at the neuromuscular junction. Match the steps highlighted in the figure (steps 1-9) with the statements using the letter key below.
-action potential triggers opening of voltage-gated calcium channels in motor neuron axon terminal

• A)Step 1
• B)Step 2
• C)Step 3
• D)Step 4
• E)Step 5
• F)Step 6
• G)Step 7
• H)Step 8
• I)Step 9

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Definitions:

DNA

Deoxyribonucleic acid, a self-replicating material which is the carrier of genetic information in nearly all living organisms.

Neurotransmitters

Chemical messengers that transmit signals across a chemical synapse, from one neuron (nerve cell) to another 'target' neuron, muscle cell, or gland cell.

Synaptic Vesicles

Small sacs in nerve cells that store neurotransmitters, which are released into the synaptic cleft to transmit nerve impulses.

Neuron

A nerve cell that is the basic building block of the nervous system, responsible for receiving and transmitting information.