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Cranium Unit

Test on the brain.

QuestionAnswer
nerve impulse described as electrical message
junction at which impulses travel from one neuron to another synapse
sodium potassium pump restores the resting potential
which statement about the chemical composition of axon is true? sodium is in greater concentration on outside
nodes gaps in the myelin sheath
neurotransmitters are released at synapses
morphine works as pain killer because acts on synapses and binds receptor on brain
hallucinogens distort sensory signals
transmission of pain signals all of the above
spinal cord all of the above
right cerebral hemisphere musical
autonomic controls involuntary functions of glands and organs
information carried from central nervous system to muscles/glands by motor neurons
different types of sense receptors all of the above
sensory neurons transmit from environment to spinal cord/brain
impulses from different sensory organs all of the above
destruction of anterior horn cells of spinal cord voluntary and motor impulses
absolute minimum number of neurons two involved in reflex arc
myelination of the sheath of nerve fibers is the job of schwann
depression of surface of cortex called fissure and salcus
which of the following is not a function of autonomic neuron system conscious control of motor activity
spinal nerve has motor pathways and sensory (a and b)
fight or flight response sympathetic nervous system
in contrast of symmatic, autonomic system has two epharons
when a patient says he's scared, which indicates sympathetic activity all of the above
parasympathetic has no effect on all of the above
most body organs intervated by parasympathetic and sympathetic division (a and b)
ascending pathways convey what sensory impulses
central nervous system consists of brain and spinal cord
electrical changes in axon create action potential
when impulse moves down axile small part of axon momentarily reverses polarity
peripheral nervous system provides pathways for central nervous system
motor neurons transmit messages from central nervous system to muscle or gland
grey matter consists of unmyelinated neurons
reflex may involve all of the above
body temp and hunger controlled by hypothalamus
Created by: rebecology