dermis
American Heritage Dictionary:
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der·mis
(dûr'mĭs) 
n.
The sensitive connective tissue layer of the skin located below the epidermis, containing nerve endings, sweat and sebaceous glands, and blood and lymph vessels. Also called corium, cutis, Also called derma.
n.
The sensitive connective tissue layer of the skin located below the epidermis, containing nerve endings, sweat and sebaceous glands, and blood and lymph vessels. Also called corium, cutis, Also called derma.
[New Latin, back-formation from Late Latin epidermis, epidermis. See epidermis.]
Deep layer of the skin, beneath the epidermis, containing blood vessels, muscles, nerve endings, and dense irregular connective tissue.
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or corium
the thick layer of tissue forming part of the skin and lying beneath the epidermis. It consists of loose connective tissue in which are blood capillaries, smooth-muscle fibres, sweat glands and sebaceous glands with their ducts, hair follicles, and sensory nerve endings.
—dermal, dermic adj.
the thick layer of tissue forming part of the skin and lying beneath the epidermis. It consists of loose connective tissue in which are blood capillaries, smooth-muscle fibres, sweat glands and sebaceous glands with their ducts, hair follicles, and sensory nerve endings.
—dermal, dermic adj.
| dermatosparaxis, dermatan sulfate, dermaseptin | |
| dermorphin, des+, desalinate |
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The corium; the principal layer of skin between the epidermis and the subcutaneous tissue; made up mostly of a network of collagen fibers but also containing nerves, blood vessels, cells and other fibers. It is divided into papillary and reticular parts, and when tanned forms leather.
- hoof d. — a greatly modified dermis, continuous at the coronet with the common dermis of the skin; the modified dermis supports the horn of the hoof.
Mosby's Dental Dictionary:
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dermis
(dur′mis)
n
n
The layer of skin just below the epidermis consisting of vascular connective tissue.
Normal skin anatomy. (Jarvis, 2000)
Random House Word Menu:
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categories related to 'dermis'
- Tissue, Fiber, and Integumentary System - dermis: inside layer of skin cells, providing elastic strength
Wikipedia on Answers.com:
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Dermis
This article is about the layer of skin. For the website, see DermIS (Dermatology Information System).
| Dermis | |
|---|---|
| Latin | dermis; corium |
| Code | TH H3.12.00.1.03001 |
The dermis is a layer of skin between the epidermis (with which it makes up the cutis) and subcutaneous tissues, that consists of connective tissue and cushions the body from stress and strain. It is divided into two layers, the superficial area adjacent to the epidermis called the papillary region and a deep thicker area known as the reticular dermis.[1] The dermis is tightly connected to the epidermis through a basement membrane. Structural components of the dermis are collagen, elastic fibers, and extrafibrillar matrix (previously called ground substance).[2] It also contains Mechanoreceptors that provide the sense of touch and heat, hair follicles, sweat glands, sebaceous glands, apocrine glands, lymphatic vessels and blood vessels. Those blood vessels provide nourishment and waste removal for both dermal and epidermal cells.
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Contents
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Components of the Dermis
The dermis is composed of three major types of cells[3]: Fibroblasts, Macrophages, and Adipocytes.
Apart from these cells, the dermis is also composed of matrix components such as collagen (which provides strength), elastin (which provides elasticity), and glycosaminoglycans[3].
Layers
Stratum papillare
The papillary region is composed of loose areolar connective tissue. This is named for its fingerlike projections called papillae, that extend toward the epidermis and contain either terminal networks of blood capillaries or tactile Meissner's corpuscles. [4]
Stratum reticulare
The reticular region lies under the papillary region and is usually much thicker. It is composed of dense irregular connective tissue, and receives its name from the dense concentration of collagenous, elastic, and reticular fibers that weave throughout it. These protein fibers give the dermis its properties of strength, extensibility, and elasticity. Also located within the reticular region are the roots of the hair, sebaceous glands, sweat glands, receptors, nails, and blood vessels.
Additional images
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Epidermis and dermis of human skin.
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Cross-section of all human skin layers.
See also
References
- ^ James, William; Berger, Timothy; Elston, Dirk (2005). Andrews' Diseases of the Skin: Clinical Dermatology (10th ed.). Saunders. Pages 1, 11–12. ISBN 0-7216-2921-0.
- ^ Marks, James G; Miller, Jeffery (2006). Lookingbill and Marks' Principles of Dermatology (4th ed.). Elsevier Inc. Page 8–9. ISBN 1-4160-3185-5.
- ^ a b The Ageing Skin - Structure
- ^ http://microvet.arizona.edu/Courses/vsc422/secure/VSC422AppledHistologyLabHandout.pdf
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This entry is from Wikipedia, the leading user-contributed encyclopedia. It may not have been reviewed by professional editors (see full disclaimer)
Translations:
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Dermis
Dansk (Danish)
n. - huden, læderhuden
Nederlands (Dutch)
(onder)huid
Français (French)
n. - hypoderme, derme
Deutsch (German)
n. - Haut, Unterhaut
Ελληνική (Greek)
n. - (ανατ.) χόριο
Português (Portuguese)
n. - derme (f), pele (m)
Svenska (Swedish)
n. - skinn (med.)
中文（简体）(Chinese (Simplified))
真皮, 皮肤
中文（繁體）(Chinese (Traditional))
n. - 真皮, 皮膚
العربيه (Arabic)
(الاسم) الأدمه ( باطن الجلد تحت البشرة)
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American Heritage Dictionary
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
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Oxford Dictionary of Sports Science & Medicine
The Oxford Dictionary of Sports Science & Medicine. Copyright © Michael Kent 1998, 2006, 2007. All rights reserved.
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Oxford Dictionary of Biochemistry
Oxford University Press. Oxford Dictionary of Biochemistry and Molecular Biology © 1997, 2000, 2006 All rights reserved.
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Saunders Veterinary Dictionary
Saunders Comprehensive Veterinary Dictionary 3rd Edition. Copyright © 2007 by D.C. Blood, V.P. Studdert and C.C. Gay, Elsevier. All rights reserved.
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Mosby's Dental Dictionary
Mosby's Dental Dictionary. Copyright © 2004 by Elsevier, Inc. All rights reserved.
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This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article Dermis.
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