Module 3 Terminology Flashcards
What is a neuron?
a specialized nerve cell that acts as the basic unit of the nervous system, responsible for receiving, processing, and transmitting electrical signals
What is an axon and dendrites?
are parts of neurons that transmit and receive electrical and chemical signals
What is the function of the axon?
Transmit signals from the cell body to other neurons or body tissue
What is the function of the dendrite?
to receive electrical signals from other neurons and transmit them to the cell body (soma) of the neuro
Neur/o
Nerve/Nervous System
Ax/o
Axis or angle
Dendr/o
Tree
Gangli/o
Ganglion/o
Ganglion (cluster of nerve cell bodies outside the CNS)
Radic/o
Radiculo/o
Rhiz/o
Nerve root
Dur/o
Dura mater
Myel/o
Spinal cord
Mening/o
Meninges
Polar/o
End of Axis/Extreme
Esthesi/o
Sensation, Sensitivity, Feeling
Poli/o
Gray Matter
Gen/o
Beginning/Origin
Leps/o
Seizure
Pre-
Before
Tetra-
Quad-
Four
Af-
Toward
Ef-
Away from
Syn-
Together
Endo-
Within
Exo-
Outside/External
Hyper-
Above
-on
Specific unit or particle (used to form nouns)
-ite
Related to
-ictal
Seizure/Attack
-paresis
Weakness
-ferent
To Carry
-apse
Join
-ous
Pertaining to
-ization
The process of becoming
What creates the negative charge difference in the cell?
Both sodium and potassium are positively charged. Negative charged phosphorylated membrane protein
What are non-specific channels?
The neurotransmitter is ACh, as soon as it binds the receptor, the channel opens and allows an increased conductance of both sodium and potassium
What type of excitatory potential occur with only a short delay?
FAST EPSPs or fEPSP
