Want an A&P Study App?! - link.voovostudy.com/ob-bundle-yt-pin Follow-Along Notes - https://organizedbiology.gumroad.com/... Struggling with Exams? Look no further! - https://organizedbiology.gumroad.com/... In this video, I provide a comprehensive overview of the urinary system, focusing on both anatomy and physiology. We explore the structure and function of the kidneys and nephrons, and how they work together to filter blood and maintain homeostasis. I also connect these concepts to glomerular filtration rate (GFR) and how filtration is regulated in the body. This is a great resource for students looking to build a strong foundation in urinary system function. Key Topics Covered: The Garage Analogy [00:31]: A simplified explanation of how the kidneys "take everything out" of the blood plasma to decide what to keep (reabsorption) and what to throw away (excretion). Blood Filtration & GFR [02:20]: An analysis of renal blood flow, explaining how 20% of cardiac output reaches the kidneys, leading to a standard Glomerular Filtration Rate (GFR) of 100–120 mL/min. Gross Anatomy of the Kidney [09:02]: A tour of the kidney's structure, including the renal cortex, medulla, renal pyramids, and the path of urine through the calyces, renal pelvis, and ureter. The Nephron: The Functional Unit [13:43]: A detailed look at the nephron's components: Glomerulus [15:15]: Where plasma is leaked into the tubule through fenestrated capillaries. Proximal Convoluted Tubule (PCT) [18:22]: The major site for reabsorbing water (65%), salt, glucose, and amino acids. Loop of Henle [20:26]: Explains how the concentration gradient in the medulla allows for water reabsorption in the descending limb and salt reabsorption in the ascending limb. Distal Convoluted Tubule (DCT) & Collecting Duct [26:46]: The final stages of filtration where hormones like Aldosterone and ADH fine-tune water and salt balance. Hormonal Regulation [29:10]: How the kidneys release Renin to regulate blood pressure and maintain a constant filtration rate. #urinarysystem, #urinarysystemanatomyandphysiology, #kidneyanatomy, #kidneyphysiology, #nephronstructure, #nephronfunction, #glomerularfiltrationrate, #GFRexplained, #renalphysiology, #APurinarysystem, #anatomyandphysiology, #biologylecture, #humanphysiology, #kidneyfunction, #filtrationreabsorptionsecretion, #renalsystemoverview, #loopofhenle, #glomerulusfunction, #afferentarteriole, #efferentarteriole, #ADHandaldosterone, #fluidbalance, #electrolytebalance, #homeostasis, #collegeAP, #nursingstudents, #premedbiology, #scienceeducation