Genesis of electrocardiogram and pathways through the heart. AV, Atrioventricular; SA, sinoatrial.
(Modified from the CIBA Collection of Medical Illustrations, Vol. 5.)
Standard limb leads and one precordial lead.
(From Marriott HLJ. Practical electrocardiography . 7th ed. Baltimore: Williams and Wilkins; 1983.)
Precordial points for chest leads. AAL, anterior axillary line; MAL, mid axillary line; MCL, mid clavicular line; PAL, posterior axillary line.
(From Marriott HLJ. Practical Electrocardiography . 7th ed. Baltimore: Williams and Wilkins; 1983.)
