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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

Major inhibitory NT in the brain

GABA