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- Describe the gross anatomy of the urinary system.
- Name the major divisions and structures of the kidneys.
- Explain how blood is supplied to the kidneys.
- Describe the structures and functions of the nephron.
- Discuss the supportive structures of the nephron and their functions.
- Understand the forces that influence the glomerular filtration rate.
- Describe the functions of the renal tubule.
- Learn the function of the renin angiotensin aldosterone system (RAAS).
- Explain how the kidneys regulate water balance.
- Understand how the kidneys regulate acid-base balance.
- Discuss how kidney function is affected by kidney and metabolic disease.
1. Gross Anatomy of the Urinary System
Our body must detoxify and cleanse itself to thrive. That is why we depend so heavily on our liver and urinary system. In this lesson, we'll explore how toxins are filtered by our organs and how urine is formed and expelled with the nephron, bladder, ureters, and urethra.
2. The Kidney: Major Divisions & Structures
Learn about the major layers of the kidneys, like the renal cortex and renal medulla. Find out about the inner parts of the kidneys, including the renal papilla, renal pelvis, renal pyramid, and renal hilum.
3. Blood Supply of the Kidneys
Follow the blood supply of the kidneys through the aorta and into the renal artery, then delve deeper into the blood supply as we look into the arcuate artery, interlobar artery, and interlobular artery. Finally, we will find out the function of the renal vein.
4. The Nephron: The Glomerulus's Major Structures and Functions
Together, the glomerulus and Bowman's capsule make up the renal corpuscle of the nephron. These parts of the nephron filter blood and are vital to our body's survival. In this lesson, you'll explore the major corpuscular structures and their functions.
5. Supportive Structures of the Nephron: Functions and Definitions
In this lesson, you'll learn about the supportive structures of the nephron, including the juxtaglomerular apparatus, juxtaglomerular cells, macula densa, and mesangial cells. You'll also explore enzymes and hormones like renin and erythropoietin and learn why they are so important to the body.
6. What is the Glomerular Filtration Rate? - Definition, Function & Terms
Forces known as hydrostatic pressure and oncotic pressure help to increase and decrease your glomerular filtration rate. Find out what the GFR is and how these forces influence it.
7. The Renal Tubule: Definition, Function & Terms
Renal tubules are essential structures in the kidneys. This lesson explores the function of the renal tubule and its parts, including the proximal and distal convoluted tubules, the loop of Henle, and the collecting duct. Learn how these components work together to absorb materials and form urine.
8. Renin Angiotensin Aldosterone System (RAAS): Pathway, Functions & Terms
The renin-angiotensin-aldosterone system is one of the most complex and important systems in controlling the blood pressure in your body. As we go over this system, you'll also learn about the many hormones involved in the control of your body's glomerular filtration rate and blood pressure.
9. How the Kidneys Regulate Water Balance
Water balance is essential to our health and survival. This lesson explores how the kidneys regulate water balance with special cells known as osmoreceptors and a process called osmoregulation. You'll also learn how this process relates to a rare form of diabetes known as diabetes insipidus.
10. How the Kidneys Regulate Acid Base Balance
Find out how your kidneys keep you alive by excreting acids and bases in conditions like respiratory acidosis, metabolic alkalosis, metabolic acidosis, and respiratory alkalosis.
11. How Kidney and Metabolic Disease Affect Kidney Function
This lesson explores chronic kidney disease and the metabolic disorders that affect kidney function. We'll delve into diabetes mellitus, hypertension, and glomerulonephritis and learn what your urine can tell you about your health.
12. What is Urethritis? - Definition, Symptoms & Treatment
In this lesson, we will explore the definition of urethritis as well as the symptoms, causes, and treatment of this uncomfortable condition. A short quiz to test your knowledge follows the lesson.
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