Anatomy Lymphoid tissue & Integumentary system 1e2946b8 Which of the following statements about hair follicles is true? A They are always associated with an eccrine sweat gland B They are present in thin skin but not in thick skin C Their associated Arrector pili muscle is composed of striated fibers D Their hair shaft inses into the papillary layer of the epidermis High-Yield Explanation Hair follicles are present only in thin skin. They are associated with sebaceous glands and errector pili smooth muscle bundles.