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Science flashcards
the brain and asteroids
23
Science
7th Grade
05/31/2011

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Cards

Term
Dendrite
Definition
an extension of a nerve cell that receives messages away from the cell body
Term
axon
Definition
a long extension of a nerve cell that carries messages away from the cell bodies
Term
neurotransmitter
Definition
a chemical that carries messages across a gap between to neurons
Term
Synapse
Definition
a small gap between 2 neurons that a message must cross
Term
sensory neurons
Definition
a group of cells that brings information to the brain from the senses
Term
Neuron
Definition
a group of cells that carries messages from the brain to muscles and other parts of the body.
Term
A pathway of neurons that a message travels from stimulus to response.
Definition
Neural pathway
Term
The time it takes a stimulus to produce a response.
Definition
reaction time
Term
Motor neuron
Definition
Specialized message -carrying cells
Term
Frontal Lobe
Definition
reasoning, planning, parts of speech, movement, emotions, and problem solving
Term
Parietal Lobe
Definition
movement, orientation, recognition, perception of stimuli
Term
Occipital Lobe
Definition
visual processing
Term
Temporal Lobe
Definition
perception and recognition of auditory stimuli, memory, and speech
Term
Cerebellum
Definition
"little brain" associated with regulation and coordination of movement, posture, and balance.
Term
Midbrain
Definition
vision, hearing, eyemovement, and body movement.
Term
Pons
Definition
motor control and sensory analysis
Term
Medulla Oblongata
Definition
maintains vital body functions, such as breathing and heart rate
Term
craters
Definition
a bowl-shaped depression with a raised rim, formed by the impact of a meteoroid
Term
rilles
Definition
any of certain long, narrow, straight or sinuous trenches or valleys observed on the surface of the moon.
Term
Rays
Definition
a raylike line or stretch of something.
Term
Mare
Definition
any of the several large, dark plains on the moon
Term
Maria
Definition
Any of the large, low-lying dark areas on the Moon
Term
Highlands
Definition
highlands, a mountainous region or elevated part
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