Practice Quiz

PTA Physical Therapy Assistant

Category - Data Collection

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Where are the Merkel’s disks situated?
  1. Epidermis
  2. Papillary dermis
  3. Reticular dermis
  4. Stratum spinosum
Explanation
Answer: D -Merkel’s disks are situated in the stratum spinosum.

Stratum spinosum is another layer of skin for protection. Merkel’s disks are responsible for touch.
Free nerve endings are present in the epidermis which are responsible for pain and itch.
Meissner’s corpusule (touch), Ruffini’s corpusule (warm), Kraase’s end bulb (cold)are present in papillary dermis.
Pacinian corpusule are present in reticular dermis which are responsible for pressure and vibration.
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