More Respiratory Flashcards
What system returns blood from organs to heart
Venous system
Refilling of heart
Diastole
When heart contracts and pumps blood from chambers to arteries
Systole
How do we control SV
increase filling time
Increase preload
Increase VR
The pressure that must be overcome to eject blood
After load
The pressure of the heart after diastole
Preload
The degree to which muscle fibers can shorten when activated by a stimulus independent of preload and after load
Contractility
Heart rate is controlled by what above 100BPM
Sympathetic
The increase in HR over a prolonged exercise with no change in workload
CV drift
States that the initial CV response to exercise Is stimulated by neural signals from the brain
Central command theory
How do we increase VR
Respiratory pump
Muscle pump
Venoconstirction
One way valves
Purpose of CV system
Removes waste
Transport oxygen
Transport nutrients
Thermo regulation
System that carries blood from heart to organs
Atrial system
