Lecture 5 Flashcards
(9 cards)
What causes diastolic depolarisation?
The opening or closing of ion channels (allow ions to move into the cell or preventing positive ions leaving)
Why is there an AV pause?
To allow ventricles to fill with blood first before contracting
Prevents transmission of high rates from the atria
What can be said about a very long P-Q wave?
Indicative of AV block
What can be said about a long QRS complex?
Bundle branch block
What is indicative about an S-T segment higher than the baseline?
Ventricle is not depolarising heterogeneity (different lengths in different parts of the ventricle)
What’s indicative about a long Q-T interval?
Long QT interval
Where is the Tricuspid valve?
Between the right atrium and right ventricle
Where is the Mitral valve?
Between the left atrium and left ventricle
