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There are many structures that make up the hair follicle. Anatomically, the triad of hair follicle, sebaceous gland and arrector pili muscle make up the pilosebaceous unit. [1] A hair follicle consists of : The papilla is a large structure at the base of the hair follicle. [4] The papilla is made up mainly of connective tissue and a capillary ...
Scalp folliculitis is a skin condition that occurs when the hair follicles on the scalp become inflamed. ... looked at more closely under a microscope. This helps to identify the specific bacteria ...
Tissue mass is defined at 3.3 kg (ICRP-89, ICRP110) and addresses the skin's epidermis, dermis, hair follicles, and glands. The cell data is extracted from 'The Human Cell Count and Cell Size Distribution', [ 17 ] [ 18 ] Tissue-Table tab in the Supporting Information SO1 Dataset (xlsx).
The inner root sheath or internal root sheath of the hair follicle is located between the outer root sheath and the hair shaft. [1] It is made of three layers: Henle's layer, Huxley's layer, and the cuticle. [2] The inner root sheaf serves to protect growing hair. [3]
An apocrine sweat gland (/ ˈ æ p ə k r ə n,-ˌ k r aɪ n,-ˌ k r iː n /; from Greek apo 'away' and krinein 'to separate') [5] [6] is composed of a coiled secretory portion located at the junction of the dermis and subcutaneous fat, from which a straight portion inserts and secretes into the infundibular portion of the hair follicle. [7]
A hair plexus or root hair plexus is a special group of nerve fiber endings and serves as a very sensitive mechanoreceptor for touch sensation. Hair contains a number of different types of nerve endings.
This form of hair loss develops gradually due to the effects of DHT on the hair follicle. ... (high-grade cancer cells are more abnormal under a microscope and tend to be more aggressive). ...
In 1842, German dermatologist Gustav Simon was investigating the formation of acne pustules and blackheads using hair follicle samples under a microscope, when he noticed movement within the sample. He described himself as surprised to find a tiny "head, legs, fore and hind body" pressed between the two glass plates of the sample, and was then ...