Template:Integumentary terms: Difference between revisions
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* '''dermatome''' - The early embryonic dorsal portion of the somite that will contribute the dermis and hypodermis of the skin. Note in the adult, this term is used to the skin sensory region innervated by a single spinal (nerve) segment. [[M#mesoderm|mesoderm]] - paraxial mesoderm - somite - dermomyotome - dermatome - dermis. (More? [[:File:Dermatomes.png|image - skin dermatome]] | [[Somitogenesis]] | [[Musculoskeletal System Development]] | [[Integumentary System Development]] | [[Neural System Development]]) | * '''dermatome''' - The early embryonic dorsal portion of the somite that will contribute the dermis and hypodermis of the skin. Note in the adult, this term is used to the skin sensory region innervated by a single spinal (nerve) segment. [[M#mesoderm|mesoderm]] - paraxial mesoderm - somite - dermomyotome - dermatome - dermis. (More? [[:File:Dermatomes.png|image - skin dermatome]] | [[Somitogenesis]] | [[Musculoskeletal System Development]] | [[Integumentary System Development]] | [[Neural System Development]]) | ||
* '''eccrine gland''' (Greek, ''ekkrinein'' = "secrete"; merocrine glands) sweat glands unique to some primates and used in humans for thermoregulation. Adult body has 2 to 4 million sweat glands with concentrations (700/cm) on the palms of the hand, soles of the feet and forehead. Secretion is timulated by sympathetic nervous system, post-ganglionic cholinergic branch, and other stimuli | * '''eccrine gland''' (Greek, ''ekkrinein'' = "secrete"; merocrine glands) sweat glands unique to some primates and used in humans for thermoregulation. Adult body has 2 to 4 million sweat glands with concentrations (700/cm) on the palms of the hand, soles of the feet and forehead. Secretion is timulated by sympathetic nervous system, post-ganglionic cholinergic branch, and other stimuli | ||
* <span id="Term-ephilis">'''ephilis'''</span> - (pl., ephilides; freckle) Clinical term describing a "freckle", that is a small brown or tan mark on the skin. These inherited features result from a copy of variant Melanocortin 1 Receptor (MC1R) gene and are common on fair skinned Celtic children. Melanocytes produce locally more melanin, this can also increase following exposure to ultraviolet radiation in sunlight. (More? [[Integumentary System Development|Integumentary]] | [[Neural Crest Development|Neural Crest]] | [http://www.omim.org/entry/155555 OMIM MC1R]) | |||
* <span id="Term-epidermis">'''epidermis'''</span> - Histological term describing the external cellular epithelial layer of the integumentary (skin) covering the entire body. This surface layer of keratinocytes is [[E#ectoderm|ectoderm]] in origin, while the underlying connective tissue layers of [[D#dermis|dermis]] and [[H#hypodermis|hypodermis]] are [[M#mesoderm|mesoderm]] in origin. (More? [[Integumentary Development]]) | * <span id="Term-epidermis">'''epidermis'''</span> - Histological term describing the external cellular epithelial layer of the integumentary (skin) covering the entire body. This surface layer of keratinocytes is [[E#ectoderm|ectoderm]] in origin, while the underlying connective tissue layers of [[D#dermis|dermis]] and [[H#hypodermis|hypodermis]] are [[M#mesoderm|mesoderm]] in origin. (More? [[Integumentary Development]]) | ||
* <span id="Term-freckle">'''freckle'''</span> - See [[#ephilis|ephilis]]. | |||
* '''hair''' - (pili) in humans consists of vellus and terminal hairs. | * '''hair''' - (pili) in humans consists of vellus and terminal hairs. | ||
* '''holocrine''' - form of gland secretion where the secretory cells eventually lyse (rupture) and are lost. On the skin, these cells release sebum consisting mainly of lipid. (More? [[:File:Holocrine secretion animation.gif|image - holocrine secretion]]) | * '''holocrine''' - form of gland secretion where the secretory cells eventually lyse (rupture) and are lost. On the skin, these cells release sebum consisting mainly of lipid. (More? [[:File:Holocrine secretion animation.gif|image - holocrine secretion]]) |
Revision as of 10:05, 25 October 2016
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