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Nervous System
STUDY
20
Other
11th Grade
11/04/2009

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Cards

Term
diencephalon
Definition
thalamus and huypothalamus
Term
Cerebrum
Definition
largest part of the brain
Term
dendrite
Definition
Carries impulse away from the body
Term
Sulci
Definition
shallow furrows of (cerebral) cavities of the brain
Term
Neuron
Definition
A nerve cell, sends messages to the brain
Term
Paraplegia
Definition
paralysis of lower body
Term
Mennings
Definition
Membraneous coverings of the brain
Term
Stimulus
Definition
Any change i nthe environment
Term
Parts of the brain stem
Definition
Pons, medulla, midbrain
Term
How many pairs Cranial Nerves do you have?
Definition
12
Term
Fissures
Definition
Grooves seperating cerebral convolutions
Term
Endorphins
Definition
released to make you happy
Term
mylien
Definition
a fatty substance that protects the axon
Term
Motor Nerves
Definition
(efferent) carry messages from the brain and spinal cord to tge muscles and glands
Term
Sensory Nerves
Definition

(afferent neurons) comes from our skin or sense organs.

 

carries the impulse to the brain and to the spinal cord

Term
Associative Neurons
Definition
(interneurons) Carries the impulse between sensory and motor nerves
Term
synapse
Definition
space between the neurons that carries messages from one cell to the next
Term
Nerve impulse
Definition

a stimulus created an impulse.

 

it travels to the neuron on the dendrite and out on the axon

Term
Reflex
Definition
unconcious and involutary
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