SA node

Bundle of His generates

30 beats per minute

Purkinge cells generates

30 beats per minute

AV node generates

50 beats per minute

SA node generates

75 beats per minute

Normal sequence AP generated by

SA node

normal sequence AV delay

allows all the atria to contract problem -> aruthmia

conducting system of the heart

composed of conducting cells less contracting protein spontaneously generate AP

Bundle of His

conducting cells collectively embedded in the membranous IV septum

Purkinge cells are

conducting cells that lays on top of endocantonin of the muscular IV septum

AV node is located

deep to the indoctrination of the right atrium in the internal septum

normal sequence AP spends and

depolarizes the atrial

conduction forms a preferred pathway of

excitation of the heart problem -> arythmia

Bundle of His has a

fast conduction

diastolic depolarization

funny current, carried by HCN

SA node is located at the

junction of SVC and Right atrium

SA node is a

mass of connective tissue with conducting cells embedded.

AV node is a

mass of connective tissue with conduction cells embedded

SA node

natural pacemaker of the heart because it can spontaneously generate AP

Purkinge cells allows

AP to spread to the ventricles

Bundle of His is carries by the

AP to the ventricles

repolarization

Ca2+ channels close and voltage gated K+ opens

AV node is very

slow conduction AV delay

depolarization

voltage gated Ca2+ channels