différents types de cardiomyocytes Flashcards

1
Q

cardiomyocytes «classiques» ⭐️ =

A

cardiomyocytes contractiles

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2
Q

cellules cardionectrices ⭐️⭐️⭐️ =

A

cardiomyocytes NON contractiles ⭐️

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3
Q

cellules cardionectrices spécialisées dans

A

l’initiation et la conduction de l’excitation ⭐️⭐️ à l’origine de l’automatisme cardiaque ⭐️⭐️

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4
Q

2 types de cellules cardionectrices : cellules nodales localisées where ?

✔️…
✔️… du faisceau de his ⭐️⭐️

A

✔️noeuds sinoatrial ⭐️ et atrioventriculaire ⭐️

✔️TRONC du faisceau de HIS

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5
Q

2 types de cellules cardionectrices : cellules de Purkinje localisées where ?

✔️dans le réseau de Purkinje
✔️… du faisceau de his ⭐️⭐️

A

dans les BRANCHES du faisceau de His

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6
Q

cellules nodales des noeuds : striation transversale ?

A

PAS de striation transversale

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7
Q

cellules nodales des noeuds : stries scalariformes ?

A

PAS de stries scalariformes du coup si pas de stries transversale

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8
Q

cellules nodales des noeuds : tubules T ?

A

PAS de tubules T

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9
Q

cellules nodales des noeuds : myofibrilles ?

A

RARES myofibrilles ⭐️⭐️

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10
Q

cellules nodales du tronc du faisceau de His ⭐️⭐️ : forme des cellules ?

A

fusiformes

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11
Q

cellules nodales du tronc du faisceau de His ⭐️⭐️ : myofibrilles …

A

myofibrilles clairsemées ⭐️⭐️

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12
Q

cellules de purkinje ⭐️⭐️ : cellules de forme ..?

A

globuleuses ⭐️

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13
Q

cellules nodales du tronc du faisceau de His ⭐️⭐️ : noyau(x) ?

A

1-2 noyaux centraux

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14
Q

cellules de purkinje ⭐️⭐️ : myofibrilles ?

A

yes ⭐️⭐️⭐️

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15
Q

cellules de purkinje riches en …

A

glycogene ⭐️⭐️ (comme les cellules nodales ⭐️) et en mitochondries ⭐️

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16
Q

cellules nodales des noeuds sinoatrial et atrioventriculaire : … (énumère tout)

A

pas de stries

pas de striation transversale

pas de tubules T

MAIS riches en glycogene ⭐️

17
Q

quelles cellules contiennent 1 à la noyaux centraux

A

cellules de purkinje !! (les cellules globuleuses la avec des myofibrilles ⭐️⭐️⭐️ et riches en mitochondries ⭐️ et en glycogene ⭐️⭐️)

18
Q

quelles cellules ont des myofibrilles clairsemées ⭐️⭐️

A

cellules nodales du tronc de faisceau de His