In this lecture, we will explore the fundamental concepts of electrolyte balance in the human body. Electrolytes, such as sodium, potassium, calcium, and chloride, play crucial roles in maintaining proper hydration, nerve signaling, muscle contraction, and overall cellular function. We will discuss how the body regulates these electrolytes through processes like renal filtration, intestinal absorption, and hormonal control. Understanding electrolyte balance is essential as disruptions can lead to serious health complications. This lecture aims to provide a clear understanding of these concepts relevant to your studies in physiology and healthcare.”