muscle lisse Flashcards

1
Q

cellules contractiles isolées : cellules individualisées se rapprochant des cellules musculaires LISSES

A

idk just know that it exists 👍

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2
Q

leiomyocytes diamètre ? longueur ?

A

diamètre : 4-20 micromètre

longueur : VARIABLE

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3
Q

leiomyocytes forme de la cellule

A

arrondie à fusiforme ⭐️⭐️⭐️

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4
Q

longueur des leiomyocytes de la paroi des vaisseaux

A

20 micrometre ⭐️⭐️

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5
Q

longueur des leiomyocytes de la paroi du tube digestif

A

200 micrometre

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6
Q

longueur des leiomyocytes de l’utérus gravide

A

500-700 micrometre

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7
Q

leiomyocytes aspects de l’enveloppe conjonctive : cloisons conjonctives ⭐️ :

✔️type de collagène ?

✔️vascularisation ?

A

✔️type I ⭐️⭐️

✔️vascularisées ⭐️

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8
Q

leiomyocytes aspects de l’enveloppe conjonctive : mb basale ⭐️ :

✔️type de collagène ?

✔️présence de quelle glycoprotéine extracellulaire

A

✔️collagène III ⭐️ :
disposé en spirale ⭐️⭐️
constituant un manchon = gaine pellucide ⭐️⭐️

✔️α-dystroglycane ⭐️

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9
Q

leiomyocytes noyau(x)?

A

noyau central et unique ⭐️⭐️⭐️

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10
Q

leiomyocytes striation

A

PAS de striction ⭐️

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11
Q

leiomyocytes sarcomeres

A

myofibrilles yes mais PAS organisées en sarcomeres ⭐️

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