Flashcards for worksheet in Cardiovascular system.
College: Third year, College: Fourth year
The intrinsic conduction system consists of ___________________ calls that initiate and distribute ______________ throughout the heart.
The intrinsic conduction system coordinates heart activity by determining the direction and speed of ______________. This leads to a coordinated heart contraction.
List the functions fo rthe following parts of the intrinsic cnduction system:
a. SA Node_______________________________
b. Internodal Pathway________________________
c. AV Node_______________________________
d. AV bundle (Bundle of His)__________________
e. Bundle Branches__________________________
f. Purkinje Fibers___________________________
The action potentials spread from the autorhythmic cells of the intrinsic conduction system (electrical event) to the ______________ cells. The resulting mechanical events cause a heartbeat.
A tracing of the electrical activity of the heart is called a/an ____________________________.
What do the following wave forms reflect?
a. P wave________________________
b. QRS complex______________________
c. T wave________________________
Note: Electrical events lead to mechanical events. Foe example, the P wave represents ___________ depolarization, which leads to atrial ____________.
A left bundle branch block would have a wider than normal wave for the _______________.