Cytology
The difference between neuroglia and neuronal cells:
What is excitability?
This type of membrane allows only certain substances to pass:
What is semi-permeability?
A local potential caused by a chemical agent acting on a chemically gated channel:
What is a synaptic potential?
Name an auto-immune syndrome characterized by demyelination of the PNS wherein the Schwann cells are attacked:
This is the predominant form of synaptic transmission in the human nervous system:
What is chemical synaptic transmission?
Names for this morphologically defined region of the neuron include perikaryon and soma:
What is a cell body?
RMY is dependent on this type of channel:
What is a non-gated channel?
The amplitude of the stimulus (EPSP or IPSP) is proportional to the strength of the stimulus. This describes:
What is graded response?
Name a condition wherein stroke-like symptoms rapidly occur and resolve within a 24hr period:
What is a transient ischemic attack?
EPSP has this effect on the post-synaptic membrane:
What is depolarization?
Name the largest class of neurons:
What are interneurons?
Name a cell other than a neuron with a RMP:
What is a glial cell?
Name the level of stimulation which causes a depolarization:
What is an axonomy?
Describe the Dale Principle:
What is "a given neuron will release the same neurotransmitter at all of its terminal sites?"
Name the principle that includes the consideration that nerves do not connect indiscriminately: rather, each nerve makes specific connections at precise points of synaptic contact:
What is the principle of connection specificity?
This equation quantitatively defines the equilibrium potential:
What is the Nernst equation?
The period wherein an action potential cannot be generated no matter the stimulus:
What is the absolute refractory period?
The retrograde degeneration of the distal end of an axon that is the result of a nerve lesion:
What is Wallerian degeneration?
This chemical transmitter is responsible for excitatory transmission at the neuromuscular junction:
What is ACh?
Name the type of axoplasmic transport that transports cytosol:
What is slow axoplasmic transport?
This important mechanism regulates charge separation across the membrane:
What is the sodium-potassium pump?
Describe the physiology of the effects of myelination on the conduction velocity of an axon:
What is saltatory conduction: AP skips from node to node?
Conduction velocity depends on:
What is A) axon diameter and B) extent of myelination?
This principle describes the increase of permeability of the Ca++ channels during high-frequency use:
What is post-tetanic potentiation?