INTEGUMENTERY SYSTEM
DERMIS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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meissner’s corpuscles
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merker’s corpuscles
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pacinian corpuscles
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None of the above
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Detailed explanation-1: -Pacini’s corpuscles are rapidly acting mechanoreceptors with a low threshold found mainly in the deeper layers of the capsule that signal joint acceleration and deceleration.
Detailed explanation-2: -Yes, the lamellated corpuscle, also known as the lamellar corpuscle or Pacinian corpuscle, is found in the reticular layer. This is the deeper of the two layers that form the dermis, the middle layer of the skin.
Detailed explanation-3: -Pacinian corpuscles (seen in Figure 17.7) are located deep in the dermis of both glabrous and hairy skin and are structurally similar to Meissner’s corpuscles; they are found in the bone periosteum, joint capsules, pancreas and other viscera, breast, and genitals.
Detailed explanation-4: -Meissner’s corpuscles are a type of mechanoreceptors which respond to low-frequency vibrations and fine touch. In contrast, Pacinian corpuscles are a type of mechanoreceptors which respond to pressure and high-frequency vibrations. So, this is the key difference between Meissner’s corpuscles and Pacinian corpuscles.