What is the magnetic field strength of a magnet that is 0.0001 Tesla?
Anonymous Quiz
5%
0.1 G
80%
1 G
10%
10 G
4%
100 G
Which type of magnetic fields are described as continuous?
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7%
Pulsed magnetic fields
84%
Static magnetic fields
8%
Alternating magnetic fields
2%
Sinusoidal magnetic fields
What type of devices create strong magnetic fields for therapy?
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43%
Static magnetic devices
57%
Pulsed magnetic field devices
What physiological effect is likely secondary to induction of currents in tissues exposed to magnetic fields?
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1%
Tissue cooling
83%
Movement of ions across cell membranes
14%
Decreased DNA transcription
2%
Reduced cell regeneration
Which magnetic field strength is typical for an MRI scanner?
Anonymous Quiz
11%
0.5G
80%
1.5-3.0T
6%
0.05mT
3%
5-10G
What is the therapeutic window amplitude for static magnetic fields?
Anonymous Quiz
3%
50-100 G
5%
500-600 G
88%
150-200 and 450-500 G
3%
250-300 G
What is the primary cellular effect of pulsed magnetic field therapy?
Anonymous Quiz
3%
Inducing heat production
91%
Inducing selective changes in the microenvironment around and within the cell
2%
Promoting muscle growth
3%
Permeating materials without affecting cellular activities
What does magnetotherapy aim to correct at the cellular level?
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5%
Increasing muscle mass
17%
Increasing the thickness of cell walls
2%
Reducing blood circulation
76%
Correcting some selected pathological states
Which cells have different potentials of about -70 mV under normal healthy circumstances?
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7%
Skin cells
88%
Muscle cells and nerve cells
4%
Bone cells
1%
Hair cells
What happens to cell potentials when cells are damaged?
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56%
They increase, causing swelling or edema
3%
They remain unchanged
37%
They cause the attraction of negative sodium ions into the cell
3%
They decrease
How do pulsed magnetic fields help in restoring normal cell potentials?
Anonymous Quiz
1%
By causing heat production
97%
By altering the cell membrane potential and realigning the ions into the correct position
2%
By reducing muscle tension
Which condition is reduced by the application of pulsed magnetic fields?
Anonymous Quiz
8%
Muscle stiffness
87%
Inflammatory edema and hematoma formation
6%
Bone density loss
What benefit does magnetotherapy provide by affecting white blood cells?
Anonymous Quiz
2%
Decreases their activity
96%
Increases their activity, enhancing phagocytosis
2%
Has no effect on white blood cells
What is improved by the application of pulsed magnetic fields that aids in healing?
Anonymous Quiz
1%
Reduction of tissue elasticity
3%
Decrease in oxygen and nutrient supply
96%
Increase in the supply of oxygen and nutrients
Which system is crucial for waste removal that is improved by magnetotherapy?
Anonymous Quiz
2%
Digestive system
6%
Nervous system
92%
Lymphatic system
What is the primary purpose of magnetic therapy?
Anonymous Quiz
95%
Pain relief and healing promotion
4%
Increasing skin elasticity
1%
Increasing body temperature
What type of magnetic fields are used in pulsed magnetic therapy?
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12%
Alternating magnetic fields
14%
Sinusoidal magnetic fields
74%
Both of them
What role does magnetic therapy play in tissue healing?
Anonymous Quiz
3%
Decreasing cell regeneration
1%
Reducing tissue oxygenation
96%
Enhancing cell metabolism and repair