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25 Cards in this Set
- Front
- Back
What is Dualism?
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The mind(brain) and body are separate.
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What is monism?
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mind and body (brain) are same; reality consists of unified whole
mind is the working of brain and nervous system (neurons firing) |
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What are some physiological changes the Sympathetic nervous system causes?
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Dilated pupils, accelerated heartbeat, inhibited digestion, constricted blood vessels in the skin, secretion of sweat glands.
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What are some physiological changes caused by the Parasympathetic nervous system?
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Constricts pupils, slows heartbeat, stimulates digestion, dilates blood vessels in skin, stimulates salivation.
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What is the difference between afferent and efferent?
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Afferent : toward the CNS (from sensory to brain)
Efferent : from the CNS (from brain to neurons to stimulate a response) |
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Coup and Contre Coup.
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Coup: site of the injury
Contre Coup: worse damage on the opposite side of coup b/c it bounced back. |
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Grey matter in spinal cord.
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Cell bodies
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White matter in spinal cord.
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Axons
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Spinal tracts
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Bundle of axons IN the CNS
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What is the role of convolutions (folds) in the brain?
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Allows more tissue in a limited space.
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Frontal lobe
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motor function
prefrontal - higher "executive function" |
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Parietal lobe
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somatosensory function
EX:touch, hot, cold, vibrations |
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Temporal lobe
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Auditory and emotion
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Occipital lobe
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Vision
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Synapse
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Tiny gap which separates neurons from each other over which they communicate.
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What are the 3 states in which a neuron can exist?
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Resting state, active state, and refractory state.
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Depolarization
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change from negative inside neuron to more positive.
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Hyperpolarization
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change from positive to more negative
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What causes changes in electrical potential?
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Ions flowing across the membrane is what causes the changes in the potential between the inside and outside of the axon.
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Anion
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negative charge
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Cation
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positive charge
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What causes the resting state, active state, and refractory period?
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Message is carried down the axon by changes IN THE MEMBRANE OF THE AXON that causes changes b/t various ions inside and outside the axon of the neuron.
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Concentration Gradient
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Ions diffuse from higher concentration to lower concentration.
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Electrical Gradient
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Opposite charges attract so ions are attracted to an environment that has a charge that is opposite of the charge they carry.
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What drives the action potential?
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Opening of Na+ channels and influx of Na+ ions.
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