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The part of the brain that is responsible for coordination during movement is the _____. a. limbic system b. thalamus c. cerebellum d. parietal lobe

Neurons contain ________, which can receive signals from other neurons. a. axons b. mitochondria c. dendrites d. Golgi bodies

Figure 17.8 Potassium channel blockers, such as amiodarone and procainamide, which are used to treat abnormal electrical activity in the heart, called cardiac dysrhythmia, impede the movement of \(\mathrm{K}+\) through voltage- gated \(\mathrm{K}+\) channels. Which part of the action potential would you expect potassium channels to affect?

For a neuron to fire an action potential, its membrane must reach________. a. hyperpolarization b. the threshold of excitation c. the refractory period d. inhibitory postsynaptic potential

A(n) ________ neuron has one axon and multiple dendrites. a. unipolar b. bipolar c. multipolar d. pseudounipolar

Which part of the nervous system directly controls the digestive system? a. parasympathetic nervous system b. central nervous system c. spinal cord d. sensory-somatic nervous system

What are the main functions of the spinal cord?

How are neurons similar to other cells? How are they unique?

After an action potential, the opening of additional voltage-gated _____ channels and the inactivation of sodium channels, cause the membrane to return to its resting membrane potential. a. sodium b. potassium c. calcium d. chloride

What are the main differences between the sympathetic and parasympathetic branches of the autonomic nervous system?