macula

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Related to macula densa: macular degeneration, aldosterone

mac·u·la

 (măk′yə-lə)
n. pl. mac·u·lae (-lē′) or mac·u·las
1.
a. An opaque spot on the cornea.
b. The macula lutea.
2. See macule2.

[Middle English, from Latin.]

mac′u·lar adj.

macula

(ˈmækjʊlə) or

macule

n, pl -ulae (-jʊˌliː) or -ules
1. (Anatomy) a small spot or area of distinct colour, esp the macula lutea
2. (Anatomy) any small discoloured spot or blemish on the skin, such as a freckle
[C14: from Latin]
ˈmacular adj

mac•u•la

(ˈmæk yə lə)

n., pl. -lae (-ˌli) -las.
1. a spot, esp. on the skin.
2.
a. an opaque spot on the cornea.
b. Also called yellow spot. an irregularly oval, yellow-pigmented area on the central retina containing color-sensitive rods and the central point of sharpest vision.
[1350–1400; Middle English < Latin: spot, blemish]
mac′u•lar, adj.

mac·u·la

(măk′yə-lə)
An area near the center of the retina in vertebrate animals where vision is sharpest.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.macula - a cooler darker spot appearing periodically on the sun's photospheremacula - a cooler darker spot appearing periodically on the sun's photosphere; associated with a strong magnetic field
maculation, patch, speckle, dapple, fleck, spot - a small contrasting part of something; "a bald spot"; "a leopard's spots"; "a patch of clouds"; "patches of thin ice"; "a fleck of red"
2.macula - a small yellowish central area of the retina that is rich in cones and that mediates clear detailed visionmacula - a small yellowish central area of the retina that is rich in cones and that mediates clear detailed vision
region, area - a part of an animal that has a special function or is supplied by a given artery or nerve; "in the abdominal region"
retina - the innermost light-sensitive membrane covering the back wall of the eyeball; it is continuous with the optic nerve
3.macula - a patch of skin that is discolored but not usually elevated; caused by various diseases
maculation, patch, speckle, dapple, fleck, spot - a small contrasting part of something; "a bald spot"; "a leopard's spots"; "a patch of clouds"; "patches of thin ice"; "a fleck of red"
cutis, skin, tegument - a natural protective body covering and site of the sense of touch; "your skin is the largest organ of your body"
freckle, lentigo - a small brownish spot (of the pigment melanin) on the skin
liver spot - a type of skin disease that causes brown spots on the skin
plague spot - a spot on the skin characteristic of the plague
Translations

mac·u·la

n. mácula, pequeña mancha descolorida de la piel.
References in periodicals archive ?
A expressao da COX-2 foi confirmada em podocitos e celulas do musculo liso das arteriolas, em rins sadios de humanos adultos, sendo detectada na macula densa, estrutura cujas funcoes integram o sistema renina-angiotensina e o controle dos niveis de ions sodio e potassio na luz do tubulo distal, contribuindo, portanto para a manutencao do volume plasmatico e da pressao sanguinea (KHAN et al.
Normally, an increase in fluid delivery to the macula densa, will initiate afferent arteriolar vasoconstriction due to activation of the tubuloglomerular feedback (TGF) system.
UA may also increase oxygenation of LDL, and UA crystals have also been shown to stimulate release of the platelet constituents serotonin, ATP and ADR Perhaps most importantly, UA has a putative role in the deveiopment of hypertension via effects on nitric oxide production in the macula densa.