Cytology
The difference between neuroglia and neuronal cells:
What is excitability?
This type of membrane allows only certain substances to pass through
semi-permeable
A local potential caused by a chemical agent acting on a chemically gated channel;
synaptic potential
Name an auto-immune syndrome characterized by demyelination of the PNS wherein the Schwann cells are attacked
What is Guillain Barre Syndrome?
This is the predominant form of synaptic transmission in the human nervous system
chemical synaptic transmission
cell body
RMP is dependent on this type of channel
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 in 24hrs
Transient ischemic attack
ESPS has this effect on the post-synaptic membrane
depolarization
Name the largest class of neurons:
What are interneurons?
Name a cell other than a neuron with a RMP
Glial cell
Name the level of stimulation which causes a depolarization:
What is a threshold?
An injury that severs an axon
axonomy
Describe the Dale Principle
a given neuron will release the same neurotransmitter at all 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:
principle of connection specificity
the equation quantitatively defines the equilibrium potential
Nernst equation
The period wherein an action potential cannot be generated no matter the stimulus:
absolute refractory period
The retrograde degeneration of the distal end of an axon that is the result of a nerve lesion
Wallerian degeneration
This chemical transmitter is responsible for excitatory transmission at the neuromuscular junction
AcH
Name the type of axoplasmic transport that transports cytosol
slow axoplasmic transport
This important mechanism regulates charge separation across the membrane:
Sodium-potassium pump
Describe the physiology of the effects of myelination on conduction velocity of an axon
saltatory conduction - AP skips from node to node
Conduction velocity depends on
What is A)diameter and B)myelination
This principle describes the increase of permeability of the CA++ channels during high-frequency use
post-tetanic potentiation