Flashcards in VI - Nervous Tissue Deck (64)
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1
Most important histopathologic indicator of CNS injury
gliosis
2
Functional and structural unit of the CNS, classified according to neurites or size
neuron
3
Excitable cells that are specialized for the reception of stimuli and conduction of nerve impulse
neuron
4
Connective tissue of the CNS, non-excitable, structural, protective
glial cells
5
Neurons: 1 axon that divides into a peripheral and a CNS branch, 0 dendrites, posterior root ganglia, cranial nerves
unipolar/pseudounipolar
6
Neurons: 1 axon, 1 dendrite, vestibular, cochlear ganglia, retinal ganglia, olfactory mucosa
bipolar
7
Neurons: 1 axon, ≥ 2 dendrites, most of CNS
multipolar
8
Neurons: no true axon, many dendrites, do not produce action potentials, regulate electrical changes of adjacent neurons
anaxonic
9
Neurons: receive stimuli from receptors
sensory / afferent
10
Neurons: sends impulses to effector organs
motor / efferent
11
Neurons: under voluntary control, innervate skeletal muscle
somatic motor
12
Neurons: involuntary, innervate glands, cardiac muscle and smooth muscle
autonomic motor
13
Neurons: establish relationships among other neurons
interneurons
14
Neurons: single long axon, fiber tracts of the brain and spinal cord, peripheral nerves, motor cells of the spinal cord
golgi type 1 cells
15
Neurons: single short axon, cerebral & cerebellar cortex
golgi type 2 cells
16
Neurons: conduct nerve impulse towards the cell body
dendrites
17
Neurons: contains the cell activities
body
18
Neurons: small conical elevation on the cell body
axon hillock
19
Neurons: conduct impulses away from the cell body
axon
20
Neurons: gaps between myelinated segments exposed to the extracellular milieu of the cell
nodes of Ranvier
21
Neurons: axon terminals, contain neurotransmitter vesicles
synaptic terminals
22
Neurons: materials are transported to the axons from the cell body, kinesin
Anterograde Axonal Transport
23
Neurons: transport of nerve growth factor, HSV, tetanus toxin, botulinum toxin, dynein
Retrograde Axonal Transport
24
What cellular structure is particularly increased in neurons
rough endoplasmic reticulum
25
RER in the CNS is in the form of
Nissl substance
26
Composed of stacked RER
Nissl substance
27
Phenomenon in fatigue or neuronal damage in which the Nissl substance moves and becomes concentrated in the periphery
chromatolysis
28
Stain used to localize Nissl substance
Aniline Stain
29
Major inhibitory NT in the spinal cord
glycine
30
