Template:Integumentary terms: Difference between revisions
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* '''arrector pili muscle''' - bundle of smooth muscle associated with hair follicle, inserts into the papillary layer of the dermis and attaches to the dermal sheath of the hair follicle. (More? [[:File:Integumentary- hair follicle 03.jpg|image - arrector pili muscle]]) | * '''arrector pili muscle''' - bundle of smooth muscle associated with hair follicle, inserts into the papillary layer of the dermis and attaches to the dermal sheath of the hair follicle. (More? [[:File:Integumentary- hair follicle 03.jpg|image - arrector pili muscle]]) | ||
* '''Blaschko lines''' - (lines of Blaschko) may represent pathways of epidermal cell migration and proliferation during development. | * '''Blaschko lines''' - (lines of Blaschko) may represent pathways of epidermal cell migration and proliferation during development. Specific type of lupus erythematosus shows this distinctive pattern. Named after Alfred Blaschko a German dermatologist who first described the feature in 1901. (More? [[Embryology Historic Terminology|Historic Terminology]]) | ||
* '''bulb''' - the hair follicle enlargement located at its deepest end, dividing cells form the hair and the root sheath. | * '''bulb''' - the hair follicle enlargement located at its deepest end, dividing cells form the hair and the root sheath. | ||
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* '''keratohyalin granule''' - found in the stratum granulosum consist of profilaggrin and loricrin. | * '''keratohyalin granule''' - found in the stratum granulosum consist of profilaggrin and loricrin. | ||
* '''Langer's lines''' - (skin cleavage lines) Clinical term for the orientation of reticular dermis bundles of fibroconnective tissues causing tensions on skin and subcutaneous tissues. Lines tend to be horizontal in the trunk and neck, and longitudinal in the skin and limbs. (More? [https://www.ncbi.nlm.nih.gov/pubmed/15791423 PMID 15791423]) | |||
* '''Meissner corpuscle''' - sensory structure acting as a rapidly-adapting mechanoreceptor mainly in the dermal papillae of (digital) skin. (More?[[Sensory - Touch Development|Touch]] | * '''Meissner corpuscle''' - sensory structure acting as a rapidly-adapting mechanoreceptor mainly in the dermal papillae of (digital) skin. (More?[[Sensory - Touch Development|Touch]] | ||
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* '''melanin''' - (Greek, ''melanos'' = black) The pigment produced by [[M#melanocyte|melanocytes]] that provides photoprotection, preventing cellular DNA damage, and colouring of the basal epithelial cells that absorb the pigment. | * '''melanin''' - (Greek, ''melanos'' = black) The pigment produced by [[M#melanocyte|melanocytes]] that provides photoprotection, preventing cellular DNA damage, and colouring of the basal epithelial cells that absorb the pigment. | ||
* '''melanodermia''' - hyperpigmentation causing abnormal darkening (brown/black) of the skin due to excess melanin or by metallic substances. See also the abnormality ceruloderma (blue/grey). (More? PMID 23522626) | * '''melanodermia''' - hyperpigmentation causing abnormal darkening (brown/black) of the skin due to excess melanin or by metallic substances. See also the abnormality ceruloderma (blue/grey). (More? [https://www.ncbi.nlm.nih.gov/pubmed/23522626 PMID 23522626]) | ||
*''' melanoblast''' - (Greek, ''melanos'' = black) The [[N#neural crest|neural crest]] precursor cell that differentiates to form [[M#melanocyte|melanocytes]] located in the skin and other tissues that produces [[M#melanin|melanin]]. (More? [[Neural Crest Development]] | [[Integumentary System Development]]) | *''' melanoblast''' - (Greek, ''melanos'' = black) The [[N#neural crest|neural crest]] precursor cell that differentiates to form [[M#melanocyte|melanocytes]] located in the skin and other tissues that produces [[M#melanin|melanin]]. (More? [[Neural Crest Development]] | [[Integumentary System Development]]) | ||
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* '''melanocyte''' - (Greek, ''melanos'' = black) A pigmented cell, [[N#neural crest|neural crest]] in origin, differentiating from [[M#melanoblast|melanoblasts]] located in the skin and other tissues that produces [[M#melanin|melanin]]. The melanocytes within the integument (skin) transfer melanin to keratinocytes to give skin colour and to the hair follicle to give hair colour. Melanocytes are also located within "non-cutaneous" tissues in the eye (for eye colour), [[H#harderian gland|harderian gland]] and inner ear. This is the cell type that proliferates in the cancer melanoma. (More? [[Neural Crest Development]] | [[Integumentary System Development]]) | * '''melanocyte''' - (Greek, ''melanos'' = black) A pigmented cell, [[N#neural crest|neural crest]] in origin, differentiating from [[M#melanoblast|melanoblasts]] located in the skin and other tissues that produces [[M#melanin|melanin]]. The melanocytes within the integument (skin) transfer melanin to keratinocytes to give skin colour and to the hair follicle to give hair colour. Melanocytes are also located within "non-cutaneous" tissues in the eye (for eye colour), [[H#harderian gland|harderian gland]] and inner ear. This is the cell type that proliferates in the cancer melanoma. (More? [[Neural Crest Development]] | [[Integumentary System Development]]) | ||
* '''Merkel cell''' - An epidermal-derived cell in touch-sensitive area of the epidermis and mediate mechanotransduction in the skin. Previously thought to be neural crest in origin, but recently shown to arise from the embryonic epithelium. The cells are named after Friedrich Sigmund Merkel, a German anatomist who was the first to describe them in 1875. (More? [[Sensory - Touch Development|Touch]] | [[Lecture - Integumentary Development]] | PMID 19786578 | PMID 3782861) | * '''Merkel cell''' - An epidermal-derived cell in touch-sensitive area of the epidermis and mediate mechanotransduction in the skin. Previously thought to be neural crest in origin, but recently shown to arise from the embryonic epithelium. The cells are named after Friedrich Sigmund Merkel, a German anatomist who was the first to describe them in 1875. (More? [[Sensory - Touch Development|Touch]] | [[Lecture - Integumentary Development]] | [https://www.ncbi.nlm.nih.gov/pubmed/19786578 PMID 19786578] | [https://www.ncbi.nlm.nih.gov/pubmed/3782861 PMID 3782861]) | ||
* '''merocrine gland''' - (sweat gland, eccrine sweat) simple tubular glands located at the border between the dermis and hypodermis. These glands regulate the body temperature. (More? [[:File:Merocrine secretion animation.gif|image - merocrine secretion]]) | * '''merocrine gland''' - (sweat gland, eccrine sweat) simple tubular glands located at the border between the dermis and hypodermis. These glands regulate the body temperature. (More? [[:File:Merocrine secretion animation.gif|image - merocrine secretion]]) | ||
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* '''vernix caseosa''' - (vernix, Latin, "caseosa" = cheese-like) a fetal protective coating consisting of sebum, skin cells and lanugo hair. Forming late in fetal development in a rostra-caudal sequence associated with epithelium differentiation. | * '''vernix caseosa''' - (vernix, Latin, "caseosa" = cheese-like) a fetal protective coating consisting of sebum, skin cells and lanugo hair. Forming late in fetal development in a rostra-caudal sequence associated with epithelium differentiation. | ||
* '''Voigt's lines''' - clinical term to describe the skin borders between areas of innervations by specific peripheral cutaneous nerves. (More? [[Sensory_-_Touch_Development|Sensory Touch]] | [[Embryology Historic Terminology|Historic Terminology]]) | |||
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Revision as of 14:01, 9 October 2017
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