What tissue type is often affected in nail disorders?

Epithelial tissue is the correct answer because it is the type of tissue that composes the structure of the nails and the surrounding areas, including the nail bed and cuticle. Nails are primarily formed from keratin, a protein produced by the epithelial cells, and the integrity of the nail structure is closely linked to the health of this tissue. Various nail disorders, such as fungal infections or psoriasis, directly impact the epithelial tissue, causing changes in nail appearance and texture. Understanding the relationship between nail disorders and epithelial tissue is crucial for treatment and prevention strategies in manicuring and nail care.

Other tissue types, such as connective, muscle, and nervous tissues, do not play a direct role in nail structure and its disorders, although they may have indirect effects on overall nail health and growth. For instance, connective tissue supports the nail bed, but it is the epithelial tissue that is primarily affected in most nail disorders.