CARDIAC OUTPUT

(CURAH JANTUNG)I D.P.SUTJANABAGIAN FISIOLOGI FK.UNUD

THE FUNCTION:TO SIRCULATION OF BLOOD TO ALL PART OF THE BODY, FOR:1. DELIVERY Nutrition and O22. REMOVAL waste of metabolism, CO23. TRANSPORT Hormon 4. MAINTENANCE body temperature

CARDIAC

CARDIAC CHAMBERCARDIAC IS DOUBLE PUMP, BUT WORK AS A SINGLE UNIT

CONTAINT:RIGHT ATRIA, RIGHT VENTRICLELEFT ATRIA AND LEFT VENTRICLE

70-80/mnt pacemaker40-60/mnt15-40/mnt

SYSTOLE ATRIA /DIATOLE VENTRICLE

AV VALVE OPEN

SEMILUNAR PULMONARY AND AORTIC CLOSED

BLOOD FLOW FROM ATRIA TO VENTRICLE

DIASTOLE ATRIA / SISTOLE VENTRICLE

AV VALVE CLOSED

SEMILUNAR PULMONARY AND AORTIC OPEN

BLOOD FLOW FROM VENTRICLE TO PULMONARY AND AORTIC ARTERY

CARDIAC SYCLE VENTRICLE FILLING PASEA. PASIVE 70 % (100CC) BLOOD DIRECT FLOW TO THE VENTRICLE VIA ATRIAB. 30% (20 CC) CONTRACTION OF ATRIA VENTRICLE EJECTION PASEC VENTRICLE SYSTOLE ISOMETRIC (ISOVOLUMETRIC)D. VENTRIKCLE EJECTIONRELACSATION ISOMETRICE. RELACSATION ISOMETRIC VENTRICLE

CARDIAC OUTPUTTHE AMOUNT OF BLOOD THAT IS PUMPED BY THE RIGHT HEART INTO THE PULMONAL ARTERY OR LEFT HEART INTO THE AORTA EACH MINUTE

THE QUANTITY OF BLOOD THAT FLOWS TO THE PERIPHERAL CIRCULATIONS

CARDIAC OUTPUT

FORMULA : CO = HR X SVHR= NUMBER HEART BEAT PER MINUTESV= THE AMOUNT OF BLOOD THAT CAN BE PUMPED BY THE RIGHT OR LEFT VENTRICLE EACH BEAT.HR : 80 / M SV : 70 MLCO = 80 X 70 ML = 5600 ML

STROKE VOLUME (SV) / VOLUME SEDENYUT:Jumlah darah yang dipompa jantung setiap satu kali sistolik ventrikel 70 cc untuk setiap ventrikel

RUMUS : SV = EDV - ESVCARDIAC OUTPUT (COP) CURAH JANTUNG)Jumlah darah yang yang dipompa jantung per menit

RUMUS: COP = HR X SV

CO OFTWO CARDIAC PUMPRIGHT VENTRICEL: TO THE PULMONARY ARTERY TO THE LUNG

LEFT VENTRICLE: TO THE AORTIC VASSEL TO ALL OF THE BODY

END DIASTOLIC VOLUME (EDV)END SISTOLIC VBOLUME (ESV)EDV : THE VOLUME OF BLOOD IN THE HEART THE END OF DIASTOLIC OF THE HEARTEDV : 120 MLSV = THE VOLUME OF BLOOD EACH BEAT OF THE HEART (70 ML)ESV : THE VOLUME OF BLOOD IN THE HEART AT THE ENDE OF SISTOLIC OF THE HEARTESV = 50 ML

EDV = ESV-SV = 120 ML 70 ML = 50 ML

CONTROL OF COACCORDING TO:1. HR2.HEART CONTRACTILITY3. PRELOAD4.AFTERLOAD

ROLE OF OTONOMIC NERVUS SYSTEM

CONTROL OF CO1.ROLE OF THE FRANK-STARLING LAW:INCREASES OF VR INCREASES OF IN DIASTOLIC FILLING PRESSURE IN THE VENTRICLE GREATES FORCE OF VENTRICEL CONTRACTION

2. INCREASE OF TISSUE MET.RATE LOCAL VASODILATION, DECREASE IN TOTAL PERIPHERAL RESISTANCE INCREASE OF VR

VENOUS RETURNIS THE AMOUNT OF BLOOD THAT FLOWS FROM THE VEIN BACK TO THE RIGHT ATRIUM EACH MINUTE

VR = CO

VR = 5 L/M / 3 L/M/BS

THE FRANK-STARLING LAW CONCEPTDURING INCREASED VR, RIGHT ATRIAL ATRETCH INCREASED CO.

STRETCH OF SINUS NODE DIRECT EFFECT ON RHYTHMICITY OF THE NODE 10-15% INCREASES HR

EXTRA STRETCH IN THE RIGHT ATRIUM BAINBRIDGE REFLEX IMPULS VASOMOTOR CENTRE SYMPATHETIC NERVES, N.VAGI INCREASE HR , VR

DISTRIBUSI CO PD ORGANLUNG: 100 % GIT: 21 %LIVER: 6 %KIDNEY: 20 %SKIN: 9 %BRAIN: 13 % CARDIAC M.CLE: 3 % SKLT. MUSCLE: 15 %BONE: 5 %OTHERS: 8 %