Cardiac cycle and ECG
BOTH names of the terminal branches of the conduction system the heart
What are Purkinje or Subendocardial fibres
The embryonic sinus venosus will eventually become this part of the heart:
RA and SVC/IVC
In PLAX, this anatomical scan plane is shown on the left hand side of the screen
The inferior aspect of the heart
These walls are seen from the PLAX views:
The anterior IVS and Inferolateral / Posterior wall
This letter represents Rapid filling during ventricular diastole
E
The period of atrial repolarization occurs here on the ECG
At the QRS wave
This is the normal pressure in the left atrium in mmHg
8-10
RVIT from PLAX window echo visualizes these 5 anatomical structures
RV, RA, TV, Eustachian valve, IVC
This coronary arteries supply the anterior wall AND IVS
Isolvolumic periods occur to prevent this
AV and SL valves opening at the same time
The PR Interval on the ECG is from this:
The delay at the AV node
These are the branches of the aortic arch in order from the ascending to descending
brachiocephalic artery, left common carotid artery, left subclavian artery
The PSAX routine images are normally taken from which to which anatomical heart planes?
Superior to Inferior
These wall segments can be seen on an apical 4 chamber view:
Inferoseptal and Anterolateral
M-mode utilizes the best of this type of resolution
temporal (time)
The rapid initial depolarization ( stage 0) of a myocyte is caused by an increase in permeability of the membrane to these ions:
sodium ions
The 3 vessels that drain into the RA are:
SVC, IVC, Coronary Sinus
6
This coronary artery has the most variable blood supply to heart walls
Circumflex
The normal embryologic opening between RA and LA is called this in a fetus
Foramen Ovale
The atria are in diastole during this time on the ECG
onset of QRS to end of T ( during ventricular systole)
This structure is formed from the the bulbus cordis
RV
This is the most anterior structure seen on a PSAX Aov level image
RV
This view shows the most LV wall segments at once
PSAX
Afib