the conduction system of the heart is comprised of the ________________ (SA) node, _______________________ (AV) node, AV bundle, and ____________________ fibers
sinoatrial
atrioventricular
purkinje
the conduction system of the heart is derived from modified cardiac ______________
muscle
the sinoatrial node (SA node or _______________________)
(1) consists of a small mass of __________________________ cells
(2) located in the top of the _____________ atrial wall near the opening of the superior vena cava
pacemaker
specialized
right
Atrioventricular node (AV node or node of ______________________) is located in the bottom of the right atrium along the __________________________ septum
Tawara
interatrial
The node of Tawara is also known as?
AV node
The AV node is also known as?
node of Tawara
. Atrioventricular bundle (AV bundle or bundle of ________)
His
(1) AV bundle originates in ______ node
(2) extends from the AV node as two ________________
(3) the cables go down the two sides of the _____________________________ septum
(4) at the __________ of the heart, one cable turns left, while the other cable turns right
(5) after the cables turn at the apex, they begin to branch out and are then called ___________________ fibers
AV cables interventricular apex Purkinje
Purkinje fibers
(1) extend out to the lateral walls of the __________________
(2) they also extend to the ____________ muscles
ventericles
papillary
