Cardiac

Blood vessels that carry blood away from the heart

• circulatory system

• arteries

• veins

• capillaries

What is the sequence of events in the transmission of an impulse through the heart muscle?
 a: AV node
 b: AV bundle
 c: SA node
 d: Through the atria
 e: Through the ventricles
 f: Bundle branches
 g: Purkinje fibers 

• d, b, a, c, f, g, e
  
  

• c, d, a, b, f, g, e
  
  

• b, a, d, c, f, g, e
  
  

• f, g, d, c, b, a, e
  
  

What part of the electrical conduction system is labelled A?

• SA Node

• AV Node

• AV Bundle

• Bundle Branches

• Purkinje Fibers

Which letter is representing the cluster of cells that are autorhythmic, send the signal down the bundle branches and have a bpm of 20-40?

• A

• B

• C

• D

• E

Which letter is representing the Purkinje fibers which are the final area of signal transmission before the ventricles completely contract?

• A

• B

• C

• D

• E

What part of the heart is number 10?

Where does blood go after it leaves number 9?

All of the following occur when the ventricles contract except

• the AV valves close

• blood is ejected into the aorta

• the semilunar valves open

• blood from the pulmonary trunk enters the atria

During atrial contraction and ventricular filling,

• the AV valves are open

• the semilunar valves are open

• the ventricles are contracted

• the atria are relaxed

Order the phases an action potential travels in the conduction system

• SA node--> AV bundle branches--> AV node--> Purkinje fibers

• SA node--> AV node--> AV bundle branches-->  Purkinje fibers

• Av bundle branches--> AV node--> SA node--> Purkinje fibers

• Purkinje fibers--> SA node--> AV node--> AV bundle branches