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electrical conductio

electrical conduction of heart

QuestionAnswer
name the two specialized structures that act as pacemakers for the heart SA Node AV Node
SA node initiates contractions by depolarization
Electrical signal spreads across atria
electrical signal crosses atria causing them to... contract
electrical signals crosses atria causing them to contract before reaching the AV node
what starts at the apex ventricle contractions of ventricles
conducting fibers are located in AV Node
conducting fibers must exit AV node to become AV bundles
specialized conducting cells transmit signal down to ...... to initiate contractions in AV node apex
AV bundle is formed from conducting fibers in AV node
AV bundle splits into right & left bundle branches
bundles branches split into purkinje fibers
purkinje fibers are located in wall of ventricles
mini ateries that branch out into capallaries artrioles
transfer stations between arteries and veins capallaries
the smallest vein components that suck blood out of the capillaries venules
what is the name of the structure where the blood is located into the tunica interna lumen
the smaller the diameter of the blood vessel, the ...... it is for blood to move through it harder
capillaries are made of what kind of tissue epithelial tissue
the heart is what kind of muscle cardiac muscle
.... pumps blood through body contractions
Created by: Miccimouse