Term
| What does the nervous system regulate? |
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Definition
| Most body systems using direct connections called nerves. It allows you to sense and responds to change (stimuli) |
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Term
| What are the functions of the nervous system |
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Definition
- receive stimuli (changes in the environment)
- respond to stimuli
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Term
| What organs are included in the nervous system? |
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Definition
- brain
- spinal cord
- sense organs (eyes, ears, taste buds, touch, nose)
- nerves
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Term
| What is the difference between a nerve and a neuron? |
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Definition
| There is no difference. They are the same thing. |
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Term
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Definition
| The functional units of the nervous system. They allow the nervous system to do its job of receiving and responding to stimuli and sending messages about that. |
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Term
| List the three parts of a neuron? |
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Definition
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Term
| List the functions for each part of a neuron. |
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Definition
- dendrite: receive messages and carry impulses toward the cell body
2. cell body: contains the nucleus which directs the message to be continued
3. axon: carries impulses away from the cell body to another cell |
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Term
| list the 2 types of neurons |
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Definition
sensory neurons
motor neurons |
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Term
| what is the function of each type of neuron? |
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Definition
sensory neurons: picks up stimuli and converts it to a nerve impulse
motor neurons: sends an impulse to a muscle or gland causing a response
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Term
What direction does the nerve message (impulse) travel through the nerve? |
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Definition
| Begins in the dendrite and quickly moves towards the cell body and then down the axon |
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Term
What are the two divisions of the nervous systems? (do not abbreviate) |
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Definition
- central nervous system
- peripheral nervous system
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Term
| What does the central nervous system include? |
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Definition
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Term
| What does the peripheral nervous include? |
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Definition
| all the nerves not included in the brain and spinal cord |
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Term
What are the three major parts of the bain and what do each control: |
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Definition
- cerebrum: interprets input from senses, controls movement, conscious activity, memory, and language
- cerebellum: balance, posture, and coordination
- brain stem: controls involuntary activities
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Term
| What is the function of spinal cord? |
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Definition
- links the brain to the rest of the body
- sends messages to and from the brain
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Term
| What are the two divisions of the peripheral nervous system? |
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Definition
- somatic nervous system
- autonomic nervous system
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Term
| What does the somatic nervous system regulate? |
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Definition
| voluntary actions (using a fork, writing with a pencil ...) |
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Term
| What does the autonomic nervous system regulate? |
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Definition
| involuntary actions (heartbeat, blinking ...) |
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