45. Nervous System

An axon can range in length from a fraction of an inch to:

Which step of nerve or muscle firing would be directly affected by a change in extracellular K\(^+\) concentration?

Where in the neuron is an action potential initially generated?

Which criterion is used to functionally classify neurons?

What is released by axon terminals into the synaptic cleft to stimulate a muscle to contract?

Which term refers to the upward change in membrane potential during an action potential?

Which of the following is most likely to allow information to pass from neuron to neuron?

What is the primary function of the axon in a neuron?

At a synapse, the neuron that responds to the neurotransmitter is the ______ neuron.

Which of the following events will cause an excitatory postsynaptic potential (EPSP) in a neuron?

The metabolic center of the neuron is indicated by ________.

The speed of an action potential depends on which of the following factors?

The term 'synapse' refers to the tiny ______ between neurons.

Another name for a nerve cell is:

Which of the following is most directly responsible for the falling (repolarizing) phase of the action potential in a neuron?