Frequently Asked Questions About Workplace Safety & Health. 1  Where can I get an OSHA 300 Log? 2  I hear that OSHA has new record keeping guidelines. 3  How do I know if my business is exempt from filing the new OSHA 300 form?  I have noticed many unsafe work practices at my employment, and I want to file a complaint.
Hair root. Hair root. The part of a hair that is embedded in the hair follicle, its lower succulent extremity capping the dermal papilla pili in the deep bulbous portion of the follicle. Synonym: radix pili. Please contribute to this project, if you have more information about this term feel free to edit this page.
Medical Definition of Hair follicle. Hair follicle: A sac from which a hair grows and into which the sebaceous (oil) glands open. The follicle is lined by cells derived from the epidermal (outside) layer of the skin. Each follicle normally goes through a five-year cycle of growth and rest, with about 90% of the follicles growing hair at any one time, averaging about six inches (15 cm) of growth per year.