Term
| What is the main function of the nervous system? |
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Definition
| to collect, decode, and respond to information about the body's internal and external environment |
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Term
| What are the two parts of the nervous system? |
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Definition
The central nervous system
the peripheral nervous system |
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Term
WHat are the parts of the central nervous system?
What is the main function of the CNS? |
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Definition
parts: brain and spinal cord
function: process incoming and outgoing messages |
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Term
What are the parts of the Peripheral nervous system?
What is the function? |
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Definition
parts: the network of nerves through out the body
Function: connect the central nervous system with the body |
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Term
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Definition
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Term
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Definition
| transfer messages throughout the body in the form of electrical signals (impulses) |
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Term
| What are the main parts of the neuron? |
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Definition
| the cell body, dendrites, and axons |
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Term
| Tell me about the cell body, dendrites, and axons. |
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Definition
Cell body: has nucleus and organelles
Dendrites: branches that bring messages to the cell body
Axon: branches that carry messages away from the cell body |
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Term
| Explain how info is moved from cell to cell. |
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Definition
| info recieved by dendrites, moves thru cell body to axon and axon terminal, then info is passed to another cell |
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Term
Know the diagram of the "Structure of a Neuron"
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Definition
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Term
| What are the functions of sensory neurons? |
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Definition
to collect info about what is happening in and around the body.
send info to CNS for processing |
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Term
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Definition
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Term
| What are the functions of the motor neurons? |
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Definition
to deliver info from CNS to other systems in the body
may send impulses to muscles causing contractions
may lead to the release of chemicals |
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Term
| What are the functions of the interneurons? |
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Definition
receive signals from the sensory neuron
transmits signals to motor neurons |
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Term
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Definition
nerves are bundles of axons, blood vessels, and connective tissue
most contain sensory and motor axons |
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Term
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Definition
| nervous system's largest organ, made up of cerebrum, cerebellum, and medulla |
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Term
| What is the function of the spinal cord? |
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Definition
| enables brain to communicate with the peripheral nervous system |
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Term
| What is the flow of information? |
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Definition
| sensory neurons -> spinal cord -> brain -> spinal cord -> motor neurons |
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Term
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Definition
| The largest part of the brain |
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Term
| What are 3 of the functions of the cerebrum? |
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Definition
responsible for thinking and remembering
controls voluntary movements
produces impulses from 5 senses |
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Term
| Explain how the 2 hemispheres of the cerebrum work. |
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Definition
the right hemisphere controls the left side of the body
the left hemisphere controls the right side of the body |
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Term
| What are 2 of the functions of the cerebellum? |
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Definition
recieves sensory impulses from the skeletal muscles and joints
keeps track of the body's position (balance) |
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Term
What is the main function of the medulla?
Give examples
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Definition
The medulla controls many body activities (most vital activities)
Examples:
blood pressure, heart rate, involutary breathing, digestion |
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Term
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Definition
touch
taste
sight
hearing
smell |
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