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Chapter Assessment Lesson 6.2
Learning Key Terms and Concepts
The two behavioral properties of a neuron are _____ and _____.
Because of the difference in electrical charge between the inside and outside of a resting cell, the cell membrane is said to be _____.
Some factors that can influence the speed of a nerve impulse are:
A. body temperature
B. diameter of the axon
C. presence of a myelin sheath
D. all of the above
Communication between cells occurs through direct transfer of electrical signals. The point at which this transfer occurs is called the _____.
A rapid, involuntary, programmed response to a stimulus is known as a(n) _____.
_____ reflexes send involuntary stimuli to the cardiac muscle of the heart and the smooth muscle of internal organs.
Thinking Critically
Recalling what you have learned about nerve impulses, how do you think each of the following substances affects conduction speeds: caffeine, sedatives, energy drinks?
If a person has extremely low blood calcium levels, will that affect the transmission of electrical signals from one cell to another? Explain your answer.
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