Starling

Loi de Starling (cardiologie)

La loi de Starling décrit le fonctionnement du ventricule cardiaque. Le cœur s'adapte à la précharge en changeant sa force de contractilité.

"Dans les limites physiologiques, le coeur éjecte tout le sang qui lui parvient en ne permettant pas une accumulation excessive de sang dans les veines"

Loi de Starling (néphrologie)

La pression glomérulaire dépend de la pression hydrostatique et de la pression oncotique

\dot Q = P \cdot S [(P_c - P_i)- \sigma (\pi _c - \pi _i)]

avec :

  • \dot Q , le flux
  • P, la perméabilité de la membrane
  • S, la surface d'échange
  • Pc , la pression hydrostatique capillaire
  • Pi , la pression hydrostatique interstitielle
  • σ, le coefficient de réflexion (dépend de la membrane et de la molécule)
  • πc , la pression oncotique capillaire
  • πi , la pression oncotique intestitielle.

Si \dot Q est positif, on a un flux des capillaires vers le milieu interstitiel, et si ce flux est supérieur à la capacité de réabsorption des lymphatiques, on a la création d'un œdème.


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Contenu soumis à la licence CC-BY-SA. Source : Article Starling de Wikipédia en français (auteurs)

Regardez d'autres dictionnaires:

  • Starling — (engl. Bezeichnung für die Vogelfamilie der Stare) ist der Name von Boris Starling (* 1970), englischer Schriftsteller Ernest Starling (1866–1927), englischer Physiologe Hannah Starling (* 1995), britische Wasserspringerin Simon Starling (* 1967) …   Deutsch Wikipedia

  • Starling — Star ling ( l[i^]ng), n. [OE. sterlyng, a dim. of OE. stare, AS. st[ae]r; akin to AS. stearn, G. star, staar, OHG. stara, Icel. starri, stari, Sw. stare, Dan. st[ae]r, L. sturnus. Cf. {Stare} a starling.] 1. (Zo[ o]l.) Any passerine bird… …   The Collaborative International Dictionary of English

  • starling — O.E. stærlinc, with dim. suffix linc, from stær starling, from P.Gmc. *staraz (Cf. O.E. stearn, O.N. stari, Norw. stare, O.H.G. stara, Ger. star starling ), from PIE *storo (Cf. L. sturnus starling, O.Pruss …   Etymology dictionary

  • starling — [stär′liŋ] n. [ME < OE stærlinc, dim. of stær, starling < IE * stor(n)os, starling, bird with similar cry > L sturnus] any of an Old World family (Sturnidae) of dark colored passerine birds with a short tail, long wings, and a sharp,… …   English World dictionary

  • starling — ► NOUN ▪ a gregarious songbird with dark lustrous or iridescent plumage. ORIGIN Old English …   English terms dictionary

  • Starling — Taxobox name = Starlings image width = 250px image caption = European Starling, Sturnus vulgaris regnum = Animalia phylum = Chordata classis = Aves ordo = Passeriformes subordo = Passeri familia = Sturnidae familia authority = Rafinesque, 1815… …   Wikipedia

  • starling — starling1 /stahr ling/, n. 1. a chunky, medium sized European passerine bird, Sturnus vulgaris, of iridescent black plumage with seasonal speckles, that nests in colonies: introduced into North America. 2. any of various similar Old World birds… …   Universalium

  • Starling — This interesting surname, of Anglo Saxon origin, derives from the Olde English pre 7th Century staerling , Middle English starling meaning starling, the bird. This is an example of that sizeable group of early European surnames that were… …   Surnames reference

  • starling — I. /ˈstalɪŋ / (say stahling) noun 1. any of numerous birds constituting the family Sturnidae, especially the common starling, Sturnus vulgaris, of Eurasia; widely introduced elsewhere as South Africa, North America, New Zealand and Australia… …   Australian English dictionary

  • starling — noun Etymology: Middle English, from Old English stærlinc, from stær starling + ling, linc ling; akin to Old High German stara starling, Latin sturnus Date: before 12th century any of a family (Sturnidae, especially genus Sturnus) of usually dark …   New Collegiate Dictionary

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