Test 2.2 Flashcards
What is stroke volume
Amount of blood pushed out of ventricles
What is end systolic
When the ventricular is empty
What is the equation for end systole volume
EDV-SV
What’s the equation for cardiac output
HR x SV
When the valves shut what sound do they produce?
A love sound
What is the cardiac conduction system
Network of specialized caradic muscle cells which allows caradic tissue to be auto rhythmic
What does the caradic conduction system consist of
SA node
AV node
Conducting cells
What does the SA node do?
Determine how fast the heart beats
What do conducting cells consist of
AV bundle (bundle of HIS)
Bundle branches
Purkinje fibers
Where must delay exist?
Between excitation and caradic contraction
What do intermodal pathways do?
Direct and slow down action potentials
What must contract first?
Atria
What must contract second after atria
Ventricles
Where does the moderator band direct action potentials to?
To papillary muscle and tension on AV valves
Blood moves out through ______ to the _______
SL valves to great vessels
