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Spring Test 1
Masterbooks Intro to A&P Volume 3
| Question | Answer |
|---|---|
| Which system is part of the motor division that controls the involuntary functions? | autonomic nervous system |
| Which cells in nervous tissue help protect and support the neurons? | neuroglia |
| What is the place where a neuron communicates with another neuron or with a muscle cell? | synapse |
| Which part of the nervous system is composed of the brain and the spinal cord? | central nervous system |
| What are the excitable nerve cells that transmit electrical signals? | neurons |
| What is the master control center of the entire nervous system? | brain |
| The portion of the action potential cycle where the membrane potential becomes less and less negative, and then positive. | depolarization |
| Which neurons carry impulses toward the central nervous system? | sensory neurons |
| Which neurons carry impulses away from the central nervous system? | motor neurons |
| What excites a neuron, triggering an electrical signal called an action potential? | stimulus |
| Which tissue is the primary component of the nervous system? | nervous tissue |
| What is composed of these three parts: cell body, dendrites, and the axon? | neuron |
| What are the molecules that carry the signals across the synaptic cleft? | neurotransmitters |
| Can neurons be routinely replaced? | NO |
| This term means "body". | somatic |
| What are the two major divisions of the nervous system? | central nervous system & peripheral nervous system |
| What is made up of bundles of axons located in the peripheral nervous system? | nerve |
| What happens to the number of myelinated axons from birth throughout childhood until adulthood? | increases |
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larmstrong3