From the Top
These nerve fibers carry motor commands away from the CNS to skeletal muscles.
What are general somatic efferents?
These chemicals are released into the synaptic cleft, and then diffuse from one side of the cleft to the other and bind to receptors on a post-synaptic neuron.
What are neurotransmitters?
Macroglial cells that myelinate axons in the CNS.
What are oligodendrocytes?
These are changes in ion concentrations across a postsynaptic membrane, causing the cell to become less negative or depolarized. These lead to an increased rate of production of Action Potentials.
What is an excitatory postsynaptic potential (EPSP)?
This is a decrease in response to a repeated Benign stimulus.
What is habituation?
What is the autonomic nervous system?
These neurons have multiple dendrites and 1 axon. These are motor neurons found in the brain and spinal cord.
What are multipolar neurons?
These cells are attacked in Guillain-Barre Syndrome.
What are Schwann Cells?
These chemical molecules alter neural function and are released into extracellular fluid AWAY from the synaptic cleft.
What are neuromodulators?
These are examples of experience dependent plasticity in the brain. This process involves persistent long-lasting changes in the strength of synapses between neurons.
What are learning and memory?
What are dendrites?
The resting membrane potential inside a neuron at rest.
What is -70 mV?
These glial cells stimulate communication between neurons and have end feet to capillaries helping to maintain blood-brain barrier.
What are astrocytes?
This adds up all inhibitory and excitatory effects of stimuli converging from many different neurons onto one.
What is spatial summation?
This happens after an axon has been damaged. The distal segment of the axon pulls away, breaks down and the myelin sheath pulls away.
What is Wallerian Degeneration?
This is the junction of the axon hillock and the initial segment, the site where the nerve impulse starts.
What is the trigger zone?
These channels open in response to a stimulus and close when the stimulus is removed.
What are gated channels?
These epithelial cells line the brain's ventricles and assist in secretion and circulation of CSF.
What are ependymal cells?
This excitatory neurotransmitter is found at the neuromuscular junction of all motor neurons?
What is acetylcholine?
This happens when an axon and its target cell are both damaged. The injured axon then sends out side sprouts to a new target.
What is regenerative sprouting?
These association neurons are located in the CNS and carry impulses from one neuron to another in the spinal cord and brain.
What are interneurons?
This is the type of transmission of impulses along myelinated nerve fibers.
What is saltatory conduction?
After a PNS injury, these cells form a corridor for possible axon re-growth following injury.
What are Schwann cells?
This neurotransmitter affects mood and perception of pain. Low levels of it have been associated with depression and suicidal behavior.
What is serotonin?
This important part of neuroplasticity occurs when cortical maps change in response to sensory input/experience and learning. This is a critical component of how PT helps in recovery post neurological insult.
What is functional reorganization of the cerebral cortex?