Question

Match List-I with List-II.

List-I	List-II
A. Free nerve endings B. Meissner corpuscle C. Ruffini endings D. Pacinian corpuscles	I. Sensitive to movement of objects over the surface of the skin, as well as to low frequency vibration II. Stimulated only by rapid local compression of the tissues III. Detect touch and pressure IV. Heavy prolonged touch and pressure signals

Choose the correct answer from the options given below:

• A. A-III, B-I, C-IV, D-II
• B. A-II, B-I, C-III, D-IV
• C. A-I, B-III, C-IV, D-II
• D. A-II, B-III, C-IV, D-I

Hint:

Mnemonic: Meissner = light touch, Pacinian = vibration, Ruffini = stretch

Answer 1

The Correct Option is A

Concept:
Different cutaneous receptors respond to specific types of mechanical stimuli such as touch, pressure, vibration, and stretch.

Step 1: Free nerve endings.

• Detect crude touch, pain and pressure Thus: \[ A \rightarrow III \]

Step 2: Meissner corpuscles.

• Sensitive to light touch and low-frequency vibration Thus: \[ B \rightarrow I \]

Step 3: Ruffini endings.

• Respond to sustained pressure and skin stretch Thus: \[ C \rightarrow IV \]

Step 4: Pacinian corpuscles.

• Respond to rapid vibration and deep pressure Thus: \[ D \rightarrow II \]

Step 5: Final mapping.
\[ A\!-\!III,\; B\!-\!I,\; C\!-\!IV,\; D\!-\!II \] \[ \boxed{\text{Correct answer = Option (1)}} \]