Nephrology is the study of what organ?

Nephrology is the branch of medicine that specifically focuses on the diagnosis and treatment of kidney disorders. The kidneys are vital organs responsible for filtering blood, removing waste, and maintaining fluid and electrolyte balance in the body. They play a crucial role in overall health by regulating blood pressure and producing important hormones. Understanding nephrology is essential for addressing various conditions like chronic kidney disease, kidney stones, and hypertension, all of which are directly related to kidney function. The other options pertain to different areas of study: cardiology deals with the heart, hepatology with the liver, and pulmonology with the lungs, making nephrology distinctly centered around the kidneys.