Questions: Select all that apply Of the following list, which are functions of the blood vessels in the dermis. To help regulate body temperature To impede the movement of pathogens To provide nutrients to the epidermal cells To prevent water loss

Select all that apply Of the following list, which are functions of the blood vessels in the dermis. To help regulate body temperature To impede the movement of pathogens To provide nutrients to the epidermal cells To prevent water loss
Transcript text: Select all that apply Of the following list, which are functions of the blood vessels in the dermis. To help regulate body temperature To impede the movement of pathogens To provide nutrients to the epidermal cells To prevent water loss
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Solution

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The functions of the blood vessels in the dermis include:

  1. To help regulate body temperature
  2. To provide nutrients to the epidermal cells

Explanation for each option:

  1. To help regulate body temperature: Blood vessels in the dermis play a crucial role in thermoregulation. They can dilate (widen) to increase blood flow and release heat or constrict (narrow) to reduce blood flow and retain heat, thereby helping to regulate body temperature.

  2. To impede the movement of pathogens: This is not a primary function of the blood vessels in the dermis. While the immune system does use the bloodstream to transport immune cells to sites of infection, the blood vessels themselves are not primarily responsible for impeding pathogen movement.

  3. To provide nutrients to the epidermal cells: The epidermis does not have its own blood supply, so it relies on the diffusion of nutrients from the blood vessels in the dermis. Therefore, providing nutrients to the epidermal cells is a key function of these blood vessels.

  4. To prevent water loss: Preventing water loss is primarily a function of the epidermis, particularly the stratum corneum, which acts as a barrier to water loss. The blood vessels in the dermis do not directly prevent water loss.

Summary: The correct functions of the blood vessels in the dermis are:

  • To help regulate body temperature
  • To provide nutrients to the epidermal cells
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