The ________ nerve carries taste information from the anterior two-thirds of the tongue.
What will be an ideal response?
facial
VII
CN VII
facial (CN VII)
facial (VII)
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At what age are nearly all bones completely ossified?
A. 5 years B. Birth C. 15 years D. 25 years
What prevents an action potential from moving backward along the axon? In other words, why do action potentials move in one direction only, down the axon away from the cell body?
A. The refractory period prevents the action potential from moving backward. B. Myelin sheaths prevent the action potential from moving backward. C. In some axons, action potentials do move backward.
After carrying a heavy box, you put it down by lowering it with your arms. Your biceps brachii muscles are contracting, but not forcefully enough to shorten and lift the box back up. This type of contraction is specifically called a(n) ________ contraction.
Fill in the blank(s) with the appropriate word(s).
Structurally, the most common type of neuron is the ________ neuron.
A. unipolar B. multipolar C. bipolar D. pseudounipolar