What are the two components of the compound sheath surrounding the hair follicle?

The correct component names for the sheath surrounding the hair follicle refer to the internal and external sheath. The internal sheath is closer to the hair and is involved in protecting and supporting the hair as it grows, while the external sheath provides structural support and is part of the skin's epidermis. This distinction is crucial for understanding the role of the follicle and its interaction with surrounding skin layers.

In the context of hair follicle biology, the terms "inner and outer sheath" may suggest the right idea but do not reflect the specific terminology commonly used in anatomy. The other options do not directly describe the structure of the hair follicle's sheath, as "dermal and epidermal sheath" implies a broader classification of skin layers without specifying which parts contribute to the follicle's supportive framework. Additionally, "protective and supportive sheath" lacks the precise anatomical language required to accurately describe the components involved. Understanding the correct terminology is essential for discussing hair follicle structures and functions in a clinical or educational setting.