C12 Flashcards

1
Q

rhabdomyocyte en coupe longitudinale

A

striation transversale
noyau périphérique allongé

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2
Q

rhabdomyocyte en coupe transversale

A

champ de conheim
noyau périphérique rond

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3
Q

les noyaux autour des vaisseaux correspondent à des

A

leiomyocytes

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4
Q

sur quelle genre d’observation pouvons nous observer les striations transversales des rhabdomyocytes

A

photonique et électronique

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5
Q

bande A veut dire

A

Anisotrope

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6
Q

bande I veut dire

A

Isotrope

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7
Q

les choses que l’on distingue au microscope électronique et non pas au micro optique sont

A

les espaces inter myofibrilles

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8
Q

triade et leur emplacement ?

A

un tubule T entouré de reticulum sarcoplasmique se trouve à l jonction AI

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9
Q

Canaux calciques

A

DHPR recepteur à la dihydropyridine
Ryr recepteur à la ryanodine

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10
Q

les cells satellites

A

spécifiques des muscles squelettiques

quasiment pas de cytoplasme fusionnent avec les rhabdomyocytes lésés

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11
Q

les cells satellites sont situés

A

entre LB et la membrane cytoplasmique

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12
Q

muscle cardiaque CL

A

noyau central
extrémités bifurquées
stries scalariformes
endomysium présent

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13
Q

muscle cardiaque CT

A

noyau central aspect en 8 due aux bifurcations

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14
Q

strie scalariforme

A

segment longitudinale: jonctions communicantes

segment transversale: jonctions adhérentes

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15
Q

hémi sarcomère

A

moitié d’un sarcomère de Strie M à la strie Z

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16
Q

comment marquer les constituants cellulaires

A

marquage fluorescent