Question
The following are the physiological effects of Ultrasonic therapy : A. Improved extensibility of the collagen B. Heating of the tissues C. Cooling of the tissues due to microstreaming D. Unidirectional movement of fluids along the boundaries of the cell E. Providing low and medium frequency current Choose the correct answer from the options given below :
This question was previously asked in
CUET PG 2026 Agri-Business Management Question Paper (25-Mar-2026) (Shift 2)
The correct answer is
A, B and D Only
The question asks to identify the physiological effects of Ultrasonic therapy from the given options.
Ultrasonic Therapy Effects Analysis
Physiological Effects Breakdown:
- A. Improved extensibility of the collagen: Correct. The thermal effects produced by ultrasound increase tissue temperature, which enhances the viscoelastic properties of collagenous tissues, leading to improved extensibility.
- B. Heating of the tissues: Correct. Ultrasound waves are converted into thermal energy as they penetrate tissues, causing a therapeutic increase in tissue temperature (diathermy).
- C. Cooling of the tissues due to microstreaming: Incorrect. Microstreaming is a mechanical effect involving fluid movement around cells, but it does not cause tissue cooling. The primary thermal effect is heating, not cooling.
- D. Unidirectional movement of fluids along the boundaries of the cell: Correct. This describes acoustic streaming, a mechanical effect where the ultrasound wave causes bulk movement of fluids in a relatively stable pattern, influencing cellular processes and transport.
- E. Providing low and medium frequency current: Incorrect. Ultrasonic therapy utilizes high-frequency acoustic (sound) waves (typically 0.8-3.0 MHz). It does not involve the delivery of electrical currents.
Conclusion:
Based on the analysis, the correct physiological effects of Ultrasonic therapy are improved collagen extensibility (A), heating of tissues (B), and unidirectional movement of fluids (D).
Therefore, the correct option is the one that includes A, B, and D.
Final Answer: The final answer is A, B and D Only
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