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How does blood supply help maintain the integrity of hair follicles?

  1. Provides thermal regulation

  2. Delivers nutrients and oxygen

  3. Removes waste products

  4. Both B and C

The correct answer is: Both B and C

The integrity of hair follicles is essential for healthy hair growth, and blood supply plays a critical role in maintaining them. Blood vessels deliver nutrients and oxygen, which are vital for the metabolic processes within the hair follicles. Hair follicles require a constant supply of nutrients to support the rapid cell division and growth necessary for hair production. Moreover, the blood supply is responsible for efficiently removing waste products generated during these metabolic processes. Accumulation of waste products can detrimentally affect the function of hair follicle cells and lead to various hair-related issues. Therefore, both the delivery of essential nutrients and oxygen, as well as the removal of waste products, work collaboratively to support the health and integrity of hair follicles. This dual role underscores why the correct answer encompasses both functions provided by blood supply.