Beyond Pumping Power: A Mind Map Unveiling the Secrets of Cardiac Function Curves
Ever wondered how your heart adjusts to changing demands? This blog unlocks the secrets of cardiac function curves with a handy mind map!
Explore the relationship between pressure in your heart and the blood it pumps, visualizing how your heart adapts to exercise, blood loss, and other situations.
Here is a detailed comprehensive mind map of the physiology topic “Cardiac Function Curves”:
Central Idea: Cardiac Function Curves
Main Branches:
- Frank-Starling Mechanism
- Cardiac Function Curves
- Physiological Significance
- Clinical Relevance
Sub-branches:
Frank-Starling Mechanism
- Length-Tension Relationship:
- Increased ventricular end-diastolic volume (VEDV)
- Increased sarcomere length
- Increased contractility
- Stretch-Activated Channels:
- Mechanotransduction
- Increased calcium influx
- Increased contractility
Cardiac Function Curves
- Pressure-Volume Loops:
- Systolic function curve
- Diastolic function curve
- End-systolic pressure-volume relationship (ESPVR)
- End-diastolic pressure-volume relationship (EDPVR)
- Stroke Volume-End-Diastolic Volume (SV-EDV) Curve:
- Frank-Starling mechanism
- Increased SV with increased EDV
- Cardiac Output-End-Diastolic Volume (CO-EDV) Curve:
- Increased CO with increased EDV
- Plateau phase
Physiological Significance
- Regulation of Cardiac Output:
- Increased CO with increased EDV
- Decreased CO with decreased EDV
- Optimization of Cardiac Function:
- Matching of cardiac output to venous return
- Optimization of cardiac efficiency
Clinical Relevance
- Heart Failure:
- Decreased CO
- Increased EDV
- Shift of cardiac function curves
- Cardiac Hypertrophy:
- Increased wall thickness
- Increased contractility
- Shift of cardiac function curves
Conclusion:
Cardiac function curves are graphical representations of the relationship between cardiac output and ventricular end-diastolic volume.
The Frank-Starling mechanism is the underlying physiological principle that governs these curves.
Understanding cardiac function curves is essential for appreciating the physiological significance of cardiac function and its clinical relevance in heart failure and cardiac hypertrophy.
