hair medulla

hair medulla
medulla of hair, medulla of hair shaft a tiny area of material in some hairs, running up the middle of the hair cortex.

Medical dictionary. 2011.

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  • hair cortex — cortex of hair, cortex of hair shaft the middle layer of a hair, constituting the bulk of the hair substance, surrounded by the hair cuticle and often enclosing a small hair medulla …   Medical dictionary

  • Medulla — refers to the middle of something and derives from the Latin word for marrow. Its anatomical uses include: Medulla oblongata, a part of the brain stem Renal medulla, a part of the kidney Adrenal medulla, a part of the adrenal gland Medulla ossea …   Wikipedia

  • Hair care — is an overall term for parts of hygiene and cosmetology involving the hair on the human head. Hair care will differ according to one s hair type and according to various processes that can be applied to hair. All hair is not the same; indeed,… …   Wikipedia

  • Hair — For other uses, see Hair (disambiguation). Hairy redirects here. For individuals nicknamed the Hairy , see List of people known as the Hairy. Hair Cross section of a hair Latin unguis …   Wikipedia

  • Medulla (hair) — The medulla is the inner most layer of the hair shaft.[1] Importance in forensics Hair can easily be discredited as belonging to a human with the presence of medulla. Most other mammals possess one which is easily visible under a microscope.… …   Wikipedia

  • Medulla — The innermost part. The spinal medulla, for example, is that part of the spinal cord that is lodged within the vertebral canal. * * * Any soft marrow like structure, especially in the center of a part. SEE ALSO: m. oblongata. SYN: substantia… …   Medical dictionary

  • Hair follicle — A hair follicle is part of the skin that grows hair by packing old cells together. Attached to the follicle is a sebaceous gland, a tiny sebum producing gland found everywhere except on the palms, lips and soles of the feet. The thicker density… …   Wikipedia

  • hair — 1. One of the fine, keratinized filamentous epidermal growths arising from the skin of the body of mammals except the palms, soles, and flexor surfaces of the joints; the full length and texture of h. varies markedly in different body sites. SYN …   Medical dictionary

  • hair — n. a threadlike keratinized outgrowth of the epidermis of the skin. It develops inside a tubular hair follicle. The part above the skin consists of three layers: an outer cuticle; a cortex, forming the bulk of the hair and containing the pigment… …   The new mediacal dictionary

  • medulla — n. 1 the inner region of certain organs or tissues usu. when it is distinguishable from the outer region or cortex, as in hair or a kidney. 2 the myelin layer of certain nerve fibres. 3 the soft internal tissue of plants. Phrases and idioms:… …   Useful english dictionary

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