Cardiovascular System Flashcards
1
Q
Arteries
A
Blood away from heart
2
Q
Veins
A
Blood to the heart
3
Q
Bradycardia
A
Less than 60 bpm
4
Q
Myogenic
A
Heart beats on its own
5
Q
Cardiac Conduction System
A
Sino-atrial Node (wave of excitation) Atrio-Ventricle Node (0.1 second delay) Bundle of his Purkinje fibres Ventricle Contracts
6
Q
6 Reasons for increased Venus return
A
Pocket Valves Muscle Contraction Thoracic Cavity Atrial Suction Pump Smooth Muscle inside veins Gravity
7
Q
Starling’s Law
A
^ Venus Return ^ Diastolic filling of the heart ^ Cardiac Muscle Stretched ^ Force of Contraction ^ Ejection Fraction
8
Q
Ejection Fraction
A
Percentage of blood pumped out of left ventricle per beat.
9
Q
Venus Return
A
How much blood is returned to the heart.
