Ameripress 3 Flashcards
neuron is a basic __ __.
-functional unit
a neuron is just a __.
-cell
3 types of neurons:
- multipolar
- bipolar
- pseudounipolar
multipolar neurons have many __ out of the cell __.
they are the most __.
- branches/processes
- body
- typical
bipolar neurons include:
- retinal
- cochlear
- vestibular
bipolar neurons have __ branches out of the cell __.
normally associated w/ the __ system & __.
- two
- body
- sensory
- interneurons
pseudounipolar neurons include:
have __ branch out of cell body,
& are actually modified __ neurons.
- DRG
- trigeminal ganglion
- single
- bipolar
(function of neurons)
direction?
- afferent (toward)
- efferent (away)
(function of neurons)
interneurons: __ common, approx. __% of neurons & __/__ b/w __.
- most
- 99.98%
- link/relay
- neurons
(function of neurons)
stimulate?
- excitatory
- & inhibitory
(function of neurons)
transmitters?
- adrenergic
- cholinergic
- dopaminergic
- gabanergic
neuron is the basic, __ unit of the __ __.
- simplest
- nervous system
most well known proponent of the neuron doctrine:
father of __.
- Ramone Kahal
- neuroanatomy
most well known proponent of the reticular doctrine:
-Camillo Golgi
cell membrane follows the __ __ model.
w/ lots of receptor __ channels in a sea of __.
- fluid mosaic
- protein
- phospholipids
neuron gets carried over a __.
thru two main fibers:
- distance
- axon
- & dendrites
intracellular transport, two ways:
- anterograde (down axon)
- retrograde (back up axon)
most common way neurons communicate with each other (synapses)=
- axodendritic
- axon to dendrite
2nd most common way neurons communicate with each other (synapses)=
- axosomatic
- axon to soma (cell body)
last two ways for neurons to synapse:
- somatosomatic
- cell body to cell body/soma to soma
- & dendrodendritic
- dendrite to dendrite
neurons transmit two ways:
- electrical
- & chemical
electrical transmission is usually __.
has __ junctions
- somatosomatic
- gap
chemical transmission is __ common.
NT packaged in __ of __.
Vesicle fuses w/ __ cell membrane.
everything is released into __ __.
synaptic cleft-> __ bw presynaptic terminal & __ membrane.
allows NT to __ & move around to find __.
gap contains __ to break down NT after its done its job.
matter __ and recycles into __ __.
- most
- vesicle, phospholipid
- phospholipid
- synaptic cleft
- gap, postsynaptic
- diffuse, receptors
- enzymes
- reabsorbes, cell body
