Cardiac input

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It has been suggested that this article or section be merged with Cardiac output. (Discuss) Proposed since January 2010.

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Cardiac input (CI) is the inverse operation of cardiac output (CO).

Cardiac output implies ejection fraction.

Ejection fraction is an easily understood and imaged mathematical model of systole.

Ejection fraction (EF) = end systolic volume (ESV) divided by end diastolic volume (EDV).

Cardiac output is a mathematical model of systole.

Cardiac input implies injection fraction (IF).

IF = end diastolic volume (EDV) divided by end systolic volume (ESV).

Cardiac input is a readily imaged mathematical model of diastole.

Cardiovascular system, physiology: cardiovascular physiology

Heart

Volumes	Stroke volume = End-diastolic volume – End-systolic volume Cardiac output = Heart rate · Stroke volume Afterload · Preload Frank–Starling law of the heart · Cardiac function curve · Venous return curve Aortic valve area calculation · Ejection fraction · Cardiac index
Dimensions	Fractional shortening = (End-diastolic dimension – End-systolic dimension) / End-diastolic dimension
Interaction diagrams	Cardiac cycle · Wiggers diagram · Pressure volume diagram
Tropism	Chronotropic (Heart rate) · Dromotropic (Conduction velocity) · Inotropic (Contractility) · Batmotropic (Excitability) · Lusitropic (Relaxation)
Conduction system / Cardiac electrophysiology	Cardiac action potential (Atrial action potential, Ventricular action potential) · Effective refractory period · Pacemaker potential · EKG (P wave, PR interval, QRS complex, QT interval, ST segment, T wave, U wave) · Hexaxial reference system
Chamber pressure	Central venous pressure/right atrial pressure → Right ventricular pressure → Pulmonary artery pressure → Pulmonary wedge pressure/left atrial pressure → Left ventricular pressure → Aortic pressure
Other	Ventricular remodeling

Vascular system/
Hemodynamics

Blood flow	Compliance · Vascular resistance (Total peripheral resistance) · Pulse · Perfusion
Blood pressure	Pulse pressure (Systolic - Diastolic) · Mean arterial pressure Jugular venous pressure Portal venous pressure
Regulation of BP	Baroreflex · Kinin-kallikrein system · Renin-angiotensin system · Vasoconstrictors/Vasodilators · Autoregulation (Myogenic mechanism, Tubuloglomerular feedback) · Paraganglia (Aortic body, Carotid body, Glomus cell)