Sophia Tarafa Presentaion 9

1. Chapter 9 presentation Terms: Polycystic Kidneys, Wilm’s tumor, Urgency, Nephron, Loop of Henle Urinary SystemBy: Sophia Tarafa

2. Polycystic Kidneys A genetic disorder characterized by the growth of numerous cysts in the kidneys. Kidneys are two organs that are located in the upper part if a person’s abdomen. The Kidneys filter waste and extra fluid from the blood to form urine, and regulate some vital substances. When cysts form they are filled with fluid which can enlarge the kidneys and reduce kidney function and can lead to kidney failure.

3. Polycystic Kidney

4. Normal Kidney

5. Wilm’s Tumor A type of kidney cancer that occurs in children. Symptoms: abdominal pain, constipation, fever, high blood pressure, loss of appetite, nausea, vomiting. Causes: most common form of childhood kidney cancer. It isn’t really known what the exact cause is Treatment: If diagnosed it is important to prevent from pushing on the child’s belly area and use cautious during bathing and handling to avoid injury. Surgery is determined depending on the stage of cancer.

6. Urinary Urgency Urinary Urgency: feeling the urge to urinate immediately. Usually occurs often as a result of irritation or inflammation of the bladder wall. Other causes, interstitial cystitis, urinary incontinence, overactive bladder systems. Test that may be done: Urinalysis, urine culture, cystoscopy, ultra sonography.

7. Nephron Nephron- is a basic structural and functional unit of the kidney. Function- regulate the concentration of water and solute substances. A nephron eliminates waste from the body, regulates blood volume, and blood pressure and regulates blood ph.

8. Nephron Structure

9. Loop of Henle In the kidney the loop of Henle is the portion of the nephron that leads from the proximal straight tubule to the distal convoluted tubule. Main function is to create a concentration gradient in the medulla of the kidney.

10. Loop of Henle diagram