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45 Cards in this Set

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  • Back
What is the function of the nervous system
Receive and send out informaton about the bodys activities
Monitors and responds to changes in the environment
How fast do nervous system messages travel
120 m/sec
What is the basic unit of structure and function in the nervous system
Neurons
What is the main control center of the nervous system
Brain
What links the brain to the rest of the body
Spinal cord
What is the largest part of the brain
Cerebrum
What does the cerebellum do
Control balance and posture
(Coordinate the actions of muscles and maintain balance)
What connects the brain to the spinal cord
Medulla
What is an automatic and extremely fast reaction to a stimulus
Reflex
Autonomic nervous system
C or P?
Peripheral nervous system
Brain and spinal cord
C or P?
Central nervous system
Interprets information
C or P?
Central nervous system
Transmits and receives messages
C or P?
Central nervous system
Control center of the body
C or P?
Central nervous system
Comes into direct contact with the envirnoment
C or P?
Peripheral nervous system
Contains pairs of nerve that connect the organs of the body
C or P?
Peripheral nervous system
Gathers information about the envirnoment
C or P?
Peripheral
Tiny gap between 2 neurons
Synapse
Largest part of a neuron
Cell body
Part of the neuron that carries messages AWAY from the central part of a neuron
Axon

A and A (away and axon)
Part of the neuron that carries messages INTO the central part of a neuron
Dendrite
Part of brain for learning and judgement
a. cerebrum
b. cerebellum
c. medulla
Cerebrum
Part of brain for smooth movement
a. cerebrum
b. cerebellum
c. medulla
Cerebellum
Part of brain for heartbeat and blood pressure
a. cerebrum
b. cerebellum
c. medulla
Medulla
Part of brain for balance
a. cerebrum
b. cerebellum
c. medulla
Cerebellum
Part of brain for artistic and math
a. cerebrum
b. cerebellum
c. medulla
Cerebrum
Part of brain for breathing
a. cerebrum
b. cerebellum
c. medulla
Medulla
Part of brain for voluntary movement
a. cerebrum
b. cerebellum
c. medulla
Cerebrum
What is the structure of a neuron?
Cell body
Dendrites: thread-like
Axon: tail
Axon terminals: ends
What are the 3 types of neurons?
SIM
S = Sensory
I = Interneurons
M = Motor
Electrical and chemical message carried throughout the body by nerve cells
Nerve impulse
What are the 2 main parts of the human nervous system and what do they do?
Central (CNS): brain and spinal cord

Peripheral: network of nerves that branch out from the CNS and connect the organs of the body
What are the 3 main parts of the brain
Cerebrum
Cerebellum
Medulla
Part of brain that controls thought, memory, speech, emotions, personality, and most involuntary muscle contractions
Cerebrum
What is the function of the spinaql cord
Provide the link between the brain and the rest of the body.
Carries messages to and from the brain
Carries messages from receptors to CNS
Sensory neurons
Carries messages from CNS (brain) to the effectors
Motor neurons
Connects motor and sensory neurons
Interneurons
What does a receptor do
Responds to stimuli and receives information from surroundings
What does a effector do
Carries out messages from the CNS (brain) - a muscle group or gland that is stimulated by the motor neuron
How does an impulse cross a synapse
"Jumps" by a chemical signal
What are the 4 lobes of the cerebrum
Frontal
Parietal
Occipital
Temporal
Where does all of your thinking takes place
Cerebrum
What is the peripheral nervous system made up of
Nerves and sense organs
Which of these is part of the Central nervous system
Medulla
Semicircular canals
Retina
Auditory nerve