Question

somatic motor neurons are used to transmit motor signals to muscles. for example, a somatic motor neuron carries a signal from your spinal cord to your biceps brachii so that you can flex your arm at the elbow. in this example, what is the correct sequence of neuronal structures that this signal would travel through in the motor neuron?
axon, cell body, synaptic terminals, dendrites, axon hillock, biceps brachii
synaptic terminals, dendrites, cell body, axon, axon hillock, biceps brachii
dendrites, cell body, axon hillock, axon, synaptic terminals, biceps brachii
dendrites, cell body, axon, axon hillock, synaptic terminals, biceps brachii

Explanation:

Neurons receive signals at dendrites, which then travel to the cell body. From the cell body, the signal goes to the axon hillock where the decision to fire an action - potential is made. The action - potential then travels down the axon to the synaptic terminals, which release neurotransmitters to the target muscle (biceps brachii in this case).

Answer:

C. dendrites, cell body, axon hillock, axon, synaptic terminals, biceps brachii