neurophys questions for chiropractic board exam
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| show | Inhibited or hyperpolarized
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| Myelinated Neurons | show 🗑
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| show | Muscarinic Receptors
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| show | Acetylcholine
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| show | Nicotinic Receptors
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| What type of effect can acetylcholine have? | show 🗑
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| What is a rapid, but transient change in membrane potential? | show 🗑
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| show | Sodium and potassium voltage-gated ion channels.
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| show | At regions of the cell membrane that are electrically excitable.
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| What is threshold? | show 🗑
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| show | subthreshold response
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| show | receptor (generator) potentials, pacemaker potentials, postsynaptic membrane potentials, end-plate potentials
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| show | action potential is generated.
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| Variable changes in magnitude of the potential... | show 🗑
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| Decrease in magnitude as they move along the cell membrane but can function as signals over a very short distance... | show 🗑
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| show | receptor potential
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| Sensory receptors respond to stimuli from... | show 🗑
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| show | graded potential--> Threshold--> Action Potential generated--> Sensory input transmitted to spinal cord and brain.
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| Why are action potentials propagated with out degradation? | show 🗑
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| show | Medulla of the adrenal glands.
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| What do chromaffin cells of the medulla of the adrenal glands secrete? | show 🗑
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| What are catecholamines? | show 🗑
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| What part of the brain is involved in the arousal from a deep sleep? | show 🗑
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| What is the reticular formation responsible for? | show 🗑
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| What is the collection of nerve endings around a hair follicle that allows for sensation of the hair being touched called? | show 🗑
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| show | Acetylcholine
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| show | Skeletal muscles
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| show | dopamine
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| show | Myasthenia Gravis
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| show | Fasciculus Cuneatus
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| show |
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| show | Inhibited or hyperpolarized
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| Myelinated Neurons | show 🗑
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| show | Muscarinic Receptors
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| What is the most common neurotransmitter released from parasympathetic postganglionic fibers? | show 🗑
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| show | Nicotinic Receptors
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| What type of effect can acetylcholine have? | show 🗑
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| What is a rapid, but transient change in membrane potential? | show 🗑
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| show | Sodium and potassium voltage-gated ion channels.
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| Where do sodium and potassium voltage-gated ion channels occur? | show 🗑
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| show | The point at which voltage-gated channels will open.
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| Graded response is... | show 🗑
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| Examples of a graded response. | show 🗑
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| When a graded potential reaches threshold... | show 🗑
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| show | graded potential
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| show | graded potential
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| show | receptor potential
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| show | Mechanoreceptors, thermoreceptors, nociceptors (pain), chemoreceptors, electromagnetic (vision) receptors.
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| What is the pathway of a graded potential? | show 🗑
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| show | It is constantly regenerated all along the membrane.
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| What organ recieves preganglionic sympathetic fibers? | show 🗑
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| show | catecholamines
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| show | Norepinephrine and epinephrine
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| show | Reticular Formation
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| show | regulating periods of unconsciousness and consciousness.
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| What is the collection of nerve endings around a hair follicle that allows for sensation of the hair being touched called? | show 🗑
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| What neurotransmitter is associated with the motor end-plate? | show 🗑
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| show | Skeletal muscles
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| show | dopamine
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| show | Myasthenia Gravis
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| show | Fasciculus Cuneatus
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| Motor Tract from the cerebellum? | show 🗑
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| show | Fasciculus Gracilus
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| Carries pain and temperature? | show 🗑
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| Increased permeability to chloride causes an influx of cholride into the cell resulting in... | show 🗑
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| Mydriasis, pupil dialation is what type of autonomic response? | show 🗑
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| Peristalsis, erection and salivation are what type of autonomic response? | show 🗑
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| show | depolarization
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| Two types of depolarization. | show 🗑
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| show | action potential
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| show | hyperpolarization
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| show | refractory period
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| sodium influx | show 🗑
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| potassium efflux | show 🗑
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| calcium influx | show 🗑
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| show | membrane is polarized
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| show | acetylcholine
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| neurotransmitter of autonomic nervous system | show 🗑
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| serve as neurotransmitters in the CNS | show 🗑
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| show | amplitude
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| show | speed of propagation
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| Governed by the concentration of intracellular and extracellular ions | show 🗑
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| What causes the repolarization phase of an action potential? | show 🗑
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| Inhibitory neurotransmitter of the CNS | show 🗑
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| Excitatory Neurotransmitters | show 🗑
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| What do drugs that block a voltage-gated Na channel in nerves do? | show 🗑
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| show | opening of voltage-gated sodium channels
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| show | positive
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| Nernst potential for potassium | show 🗑
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| show | Absolute refractory period
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| Housekeeping cells of the CNS | show 🗑
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| Due to effects of a single synapse firing a rapid succession... | show 🗑
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| Neuron with resting membrane potential that is more negative... | show 🗑
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| myelinated neurons | show 🗑
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