The nursing instructor teaches the student nurses about the structure and function of the skin. What will the best teaching plan of the instructor include?
1. The outermost layer of the epidermis serves as the major waterproof barrier to the environment.
2. The epidermis provides a foundation for the accessory structures such as hair and nails.
3. The amount of subcutaneous tissue varies, and is determined by nutritional status and heredity.
4. Most receptor nerve endings, oil glands, sweat glands, and blood vessels are found within the subcutaneous fat.
5. The deepest epidermal layer provides new cells.
Correct Answer: 1,3,5
Rationale 1: The outermost layer of the epidermis, or stratum coneum, forms an effective barrier. Most substances cannot penetrate this barrier.
Rationale 2: The dermis, not the epidermis, provides a foundation for the accessory structures such as hair and nails.
Rationale 3: The amount of subcutaneous tissue varies, and is determined by nutritional status and heredity.
Rationale 4: Most receptor nerve endings, oil glands, sweat glands, and blood vessels are found within the dermis, not the subcutaneous fat.
Rationale 5: The deepest epidermal sublayer supplies the epidermis with new cells after older superficial cells have been damaged or lost through normal wear.
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