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Flashcards in SCS foundations Deck (45)
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1

Carries sensory impulses to the brain

Dorsal root

2

Dermatome serves neck, shoulders, and portions of the upper limbs

Cervical dermatomes

3

Dermatome serves trunk of the body and the upper limbs

Thoracic dermatome

4

Dermatome serves anterior legs

Lumbar dermatome

5

Dermatome serves buttocks and posterior legs

Sacral dermatomes

6

SCS consists of three parts:

Electrodes on one or more leads
Power source
An extension (optional for some)

7

Describes how non painful input closes the gate to painful input, explains in the prevention of pain sensation traveling from the CNS to the brain

Gate control theory

8

Sensory receptors

Nociceptors

9

Afferent fibers, are the largest in size, are myelinated and have the fastest conductive velocity

A-alpha and A-beta

10

3 components required to create a closed electrical circuit

Power source
Conductor
Resistance

11

Measure of work needed to move an electrical charge

Voltage

12

Strength or height of a wave disturbance such as an electromagnetic wave

Amplitude (voltage or current (I))

13

Flow of electrons pushed through a circuit over time

Current (Amperes)

14

The inhibition of the flow of electrons in a circuit

Resistance (ohms)

15

Ohms law

V= I (amps) x R (resistance)

16

Impedance is a result of a variety of factors:

Material resistance (leads,extensions)
Scar tissue
Fluid (CSF)

17

Region directly beneath the bony and ligamentous elements forming the vertebral canal

Epidural space

18

Space which surrounds the spinal cord and lies between the pis and arachnoid mater containing CSF

Intrathecal space

19

Ohms law describes relationship between:

Voltage
Current
Resistance

20

Duration of stimulation

Pulse width

21

Process by which the nervous system senses and transmits pain signals to the brain

Central pain pathway

22

Sensory neurons sensitive to painful stimuli

Nociceptors

23

Most commonly indicated condition for SCS

FBSS

24

Electricity is the flow of electrons from

Cathode to anode

25

Activation of an axon will take place only when stimulation is at a point on or above:

The action potential

26

Minimum amplitude that can excite an axon

Rheobase

27

Minimum pulse width that can excite an axon

Chronaxie

28

Four components of pain

Nociception
Perception of pain
Suffering
Pain behaviors

29

Indications for SCS

P (postlami)
U (unsuccessful disk surg)
M (multiple back ops)
P (peripheral causalgia)
E (epidural fibrosis)
D (DDD)
F (FBS)
R (radicular pain syndrome)
A (arachnoiditis)
C (CRPS)

30

Carries motor impulses from the brain

Ventral root