Pressures in Biophysics: Atmospheric, Hydrostatic, and Osmotic Pressure Pressure plays a vital role in understanding physiological processes and the behavior of fluids and gases in biological systems. These pressures are crucial in explaining phenomena such as breathing, circulation, and cellular exchange mechanisms. 1. Atmospheric Pressure Definition: Biophysical Relevance: 2. Hydrostatic Pressure Definition: Biophysical Relevance: 3. Osmotic Pressure Definition: Biophysical Relevance: Comparison of Pressures Type of Pressure Definition Role in Biophysics