Urinary System

What are the organs of the urinary system?

• Kidneys

• Ureter

• Urethra • Urinary Bladder

What are the organs of the urinary tract?

• Ureter

• Urinary bladder

• Urethra

What are the main functions of the Urinary system?

• Removal of waste• Storage of urine• Excretion of urine• Regulation of blood PH levels• Regulation of blood fluid volume levels

Where are the kidneys located?

• The superior pole of the kidney is located around thoracic vertebrae number 12.

• The inferior pole is located around lumbar vertebrae number 3.

Label: Renal cortex, renal medulla, renal pyramids, renal columns, and renal papilla.

Label: Minor calyx, major calyx, renal pelvis, ureter

What is the main blood supply to the kidneys?

• Renal arteries

What is the vein that drains the kidneys?

• Renal vein

What rhythmic movements of smooth muscle propel urine along

the length of the ureter?

• Peristalsis

What organ serves as a reservoir for urine?

• Urinary bladder

Label: Internal urethral sphincter, external urethral sphincter, and urethra

How long is the female urethra?

• 3-5 centimeters

How long is the male urethra?

• 18-20 centimeters long

What blood vessel supplies the kidneys with blood?

• A. Hepatic vein• B. Renal Artery• C. Renal Vein• D. Superior Vena Cava

How many muscular sphincter surround the urethra?

• A. Six• B. Two• C. One• D. None

In what part of a kidney do the vessels, nerves, and ureters connect to it?

•Hilum

One kidney is lower then the other which one? Why?

• Right Kidney• The larger size of the right lobe of the liver

Where do the ureters enter the bladder?

• Posterolateral wall

How much cardiac output passes through the kidneys?

• 20-25 %