Practice Quiz

PTA Physical Therapy Assistant

Category - Data Collection

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What is the interface between the epidermis and dermis called?
  1. Stratum corneum
  2. Rete peg
  3. Stratum granulosum
  4. Stratum spinosum
Explanation
Answer: B -The interface between the epidermis and dermis is called rete peg.

Retepegs are ridges and valleys which help to increase the surface between epidermis and dermis. They act as reservoirs. They help to overcome friction forces.
Stratum corneum helps the skin to be waterproof and prevents infection.
Stratum granulosum helps in water retention and heat regulation.
Stratum spinosum is another layer of skin for protection.
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