Cours 3: Travail obstétrical normal: notions théoriques Flashcards

1
Q

Quelles sont les 4 phases physiologique de l’activité utérine?

A

1- Inhibition active
2- Activité myomètre
3- Phase de stimulation
4- Involution

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2
Q

Quels sont les inhibiteurs qui permettent de maintenir l’utérus dans un état de quiescence pendant la grossesse? (3)

A

1- Progestérone
2- Prostacycline
3- Relaxine

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3
Q

Quels sont les agents utérotoniques qui permettent à l’utérus de se contracter dans sa phase de stimulation? (3)

A

1- Prostaglandine E2 (PGE2)
2- Prostaglandine F2 (PGF2)
3- Oxytocine

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4
Q

Qu’est-ce qui permet à l’utérus de diminuer de volume après l’accouchement (phase d”involution)?

A

Ocytocine

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5
Q

Quel est l’effet de l’oestrogène sur les récepteurs utérotoniques?

A

Augmentation du nombre de récepteurs

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6
Q

Quelle est la principale source d’oestrogène pendant la grossesse?

A

Placenta

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