Where are Meissner's and Merkel's receptors more abundant?

• A. In the back
• B. In the fingertips
• C. In the arms
• D. In the torso

Answer: (B)

Fine touch sensitivity depends on how densely packed certain touch receptors are in the skin. Meissner's corpuscles and Merkel's discs are the two main types involved in detecting light touch, texture, and steady pressure. These receptors are especially concentrated in the fingertips, giving them the highest tactile acuity. That’s why the fingertips have the most of these receptors, whereas the back, arms, and torso have fewer and lower sensitivity.