The respiratory system refers to the lungs and structures within the body that are involved in the process of breathing. This guide provides a brief overview of the anatomy and physiology of the respiratory system, including the structures that help make breathing...
The factors responsible for holding the lungs to the thorax wall are surface tension from pleural fluid and negative pressure in the pleural cavity. This article will provide an overview of how the lungs and thorax wall are held together, as well as the role of...
Under what internal conditions does air tend to flow into the lungs? The simple answer is that air flows into the lungs because of a pressure gradient. But what creates this pressure gradient? In this article, we’ll explore the different internal conditions that...
During respiration, our lungs work to help the body take in oxygen while removing carbon dioxide. This process is known as gas exchange. For it to function properly, the amount of ventilation must match the amount of perfusion in the alveoli of the lungs. In other...
The process of pulmonary diffusion is a vital part of respiration and refers to the movement of gases between the alveoli and blood. This exchange is necessary in order to ensure that oxygenated blood is delivered to the body’s cells and that carbon dioxide is...
We often think of the heart and kidneys as two completely separate organs, but in reality, they’re closely linked. Heart failure can lead to kidney failure, and vice versa. So, what is renal heart failure? What is heart failure? That is exactly what we are going...
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