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45 Cards in this Set
- Front
- Back
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What is the function of the nervous system
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Receive and send out informaton about the bodys activities
Monitors and responds to changes in the environment |
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How fast do nervous system messages travel
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120 m/sec
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What is the basic unit of structure and function in the nervous system
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Neurons
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What is the main control center of the nervous system
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Brain
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What links the brain to the rest of the body
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Spinal cord
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What is the largest part of the brain
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Cerebrum
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What does the cerebellum do
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Control balance and posture
(Coordinate the actions of muscles and maintain balance) |
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What connects the brain to the spinal cord
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Medulla
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What is an automatic and extremely fast reaction to a stimulus
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Reflex
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Autonomic nervous system
C or P? |
Peripheral nervous system
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Brain and spinal cord
C or P? |
Central nervous system
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Interprets information
C or P? |
Central nervous system
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Transmits and receives messages
C or P? |
Central nervous system
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Control center of the body
C or P? |
Central nervous system
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Comes into direct contact with the envirnoment
C or P? |
Peripheral nervous system
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Contains pairs of nerve that connect the organs of the body
C or P? |
Peripheral nervous system
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Gathers information about the envirnoment
C or P? |
Peripheral
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Tiny gap between 2 neurons
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Synapse
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Largest part of a neuron
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Cell body
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Part of the neuron that carries messages AWAY from the central part of a neuron
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Axon
A and A (away and axon) |
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Part of the neuron that carries messages INTO the central part of a neuron
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Dendrite
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Part of brain for learning and judgement
a. cerebrum b. cerebellum c. medulla |
Cerebrum
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Part of brain for smooth movement
a. cerebrum b. cerebellum c. medulla |
Cerebellum
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Part of brain for heartbeat and blood pressure
a. cerebrum b. cerebellum c. medulla |
Medulla
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Part of brain for balance
a. cerebrum b. cerebellum c. medulla |
Cerebellum
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Part of brain for artistic and math
a. cerebrum b. cerebellum c. medulla |
Cerebrum
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Part of brain for breathing
a. cerebrum b. cerebellum c. medulla |
Medulla
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Part of brain for voluntary movement
a. cerebrum b. cerebellum c. medulla |
Cerebrum
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What is the structure of a neuron?
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Cell body
Dendrites: thread-like Axon: tail Axon terminals: ends |
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What are the 3 types of neurons?
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SIM
S = Sensory I = Interneurons M = Motor |
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Electrical and chemical message carried throughout the body by nerve cells
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Nerve impulse
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What are the 2 main parts of the human nervous system and what do they do?
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Central (CNS): brain and spinal cord
Peripheral: network of nerves that branch out from the CNS and connect the organs of the body |
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What are the 3 main parts of the brain
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Cerebrum
Cerebellum Medulla |
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Part of brain that controls thought, memory, speech, emotions, personality, and most involuntary muscle contractions
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Cerebrum
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What is the function of the spinaql cord
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Provide the link between the brain and the rest of the body.
Carries messages to and from the brain |
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Carries messages from receptors to CNS
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Sensory neurons
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Carries messages from CNS (brain) to the effectors
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Motor neurons
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Connects motor and sensory neurons
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Interneurons
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What does a receptor do
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Responds to stimuli and receives information from surroundings
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What does a effector do
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Carries out messages from the CNS (brain) - a muscle group or gland that is stimulated by the motor neuron
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How does an impulse cross a synapse
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"Jumps" by a chemical signal
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What are the 4 lobes of the cerebrum
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Frontal
Parietal Occipital Temporal |
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Where does all of your thinking takes place
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Cerebrum
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What is the peripheral nervous system made up of
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Nerves and sense organs
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Which of these is part of the Central nervous system
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Medulla
Semicircular canals Retina Auditory nerve |
