Perfusion is MOST accurately defined as the: A. effective transfer of oxygen from the venules across the systemic capillary membrane walls. B. ability of the systemic arteries to constrict as needed to maintain an adequate blood pressure. C. effective removal of carbon dioxide and other metabolic waste products from the body’s cells. D. circulation of blood within an organ in adequate amounts to meet the body’s metabolic needs.
Circulation of blood within an organ in adequate amounts to meet the body’s metabolic needs
The most accurate definition of perfusion is D. circulation of blood within an organ in adequate amounts to meet the body’s metabolic needs.
Perfusion is the constant process of delivering oxygen-rich blood to the organs and tissues and removing waste products from them. Adequate perfusion is a critical part of maintaining proper metabolic function and survival. It is essential for delivering oxygen and nutrients to cells and tissues, and for removing metabolic waste products such as carbon dioxide and lactic acid.
While options A and C are related to the exchange of gases and waste products at the capillary level, they do not fully encompass the broader concept of perfusion. Option B is specific to arterial function and blood pressure regulation, but it does not fully capture the concept of perfusion either. Therefore, option D is the most accurate definition of perfusion.
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