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Physiologic framework of extrinsic controls
The Journal of Cardiovascular Nursing
|July 1, 1991
Insights
Extrinsic controls like neuronal and humoral mechanisms regulate heart rate and blood pressure. These complex interactions ensure proper cardiovascular functioning and blood flow distribution.
Area of Science:
- Physiology
- Cardiovascular Science
Background:
- The cardiovascular system relies on intricate regulatory mechanisms.
- Maintaining stable cardiac output, blood flow, and arterial pressure is vital.
Purpose of the Study:
- To outline the extrinsic control systems governing the cardiovascular system.
- To describe the interplay of neuronal, humoral, reflex, and chemical regulators.
Main Methods:
- Review of established physiological control mechanisms.
- Analysis of regulatory pathways impacting cardiovascular parameters.
Main Results:
- Identified neuronal, humoral, reflex, and chemical mechanisms as key extrinsic controls.
- Demonstrated their roles in regulating heart rate, contractility, and vascular tone.
Conclusions:
- Extrinsic controls are essential for cardiovascular homeostasis.
- Complex interactions among these mechanisms ensure integrated cardiovascular regulation.
Abstract:
Extrinsic controls of the cardiovascular system include neuronal, humoral, reflex, and chemical regulatory mechanisms. These extrinsic controls regulate heart rate, myocardial contractility, and vascular smooth muscle to maintain cardiac output, blood flow distribution, and arterial blood pressure. Integration and regulation of cardiovascular functioning involves complex interactions between these control mechanisms.