2. Urinary System chapter 15 Figure 15.2 Animation—The Urinary System Renal vein Kidney Renal artery Aorta Inferior vena cava Cortex Medulla Ureter Ureter Bladder Urethra Cortex Medulla Nephrons Collecting duct Renal pelvis a) The components of the urinary system. b) Internal structure of the kidney. c) The cortex and medulla of the kidney are composed of numerous nephrons. PLAY

3. Urinary System Figure 15.2 Renal vein Kidney Renal artery Aorta Inferior vena cava Cortex Medulla Ureter Ureter Bladder Urethra Cortex Medulla Nephrons Collecting duct Renal pelvis a) The components of the urinary system. b) Internal structure of the kidney. c) The cortex and medulla of the kidney are composed of numerous nephrons.

4. Organs of the Urinary System Figure 15.3 Internal urethral sphincter Urinary bladder External urethral sphincter Urethra Uterus Rectum Vagina Rectum Testis a) The male b) The female Prostate gland Penis

5. Tubular and Vascular Nephron Components Figure 15.5

6. Formation of Urine Figure 15.6

7. Formation of Dilute Urine

8. Formation of Concentrated Urine Figure 15.11

9. Kidney’s Role in Homeostasis Figure 15.13

10. Kidney’s Role in Homeostasis Figure 15.15

11. Introduction A. The urinary system consists of two kidneys that filter the blood, two ureters, a urinary bladder, and a urethra to convey waste substances to the outside. Copyright  The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

14. 3. Venous blood is returned through a series of vessels that generally correspond to the arterial pathways. Copyright  The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

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