In this section, we analyze a fundamental concept of normal physiology — homeostasis. This is the basis without which it is impossible to understand how the organism survives and adapts to constantly changing environmental conditions.
The material in this section is entirely focused on the topic of homeostasis. We will break down how self-regulation mechanisms work, clarify the difference between rigid and labile physiological constants, and examine exactly how the nervous and endocrine systems maintain the dynamic equilibrium of body fluids.
In seminars and colloquia, instructors most often ask to provide examples of rigid constants (for example, blood pH), explain the principle of negative feedback, and draw a biological regulation loop. A firm understanding of these processes is your key to passing the exam successfully and the foundation for future clinical practice.