Urinary System PDF
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Summary
This document provides an overview of the human urinary system, including its components like kidneys, ureters, urinary bladder, and urethra. It also details the role of blood vessels like the renal artery and vein in the filtration and circulation processes within the kidneys. The document also describes the different parts of the kidney and their respective functions.
Full Transcript
1 Urinary System The urinary system is made up of: ▹ 2 kidneys ▹ 2 ureters ▹ urinary bladder ▹ urethra 2 Ureters Tubes leading away from each kidney. Carry the urine from the kidney to the urinary bladder. 3 Urinary Bladder Muscular sac. Urine...
1 Urinary System The urinary system is made up of: ▹ 2 kidneys ▹ 2 ureters ▹ urinary bladder ▹ urethra 2 Ureters Tubes leading away from each kidney. Carry the urine from the kidney to the urinary bladder. 3 Urinary Bladder Muscular sac. Urine collects and is stored here. When full, voluntary muscles will contract to squeeze the urine out through the urethra (urination). 4 Urethra A tube leading from the bottom of the urinary bladder. Carries urine outside the body. 5 6 Important Blood Vessels Renal Artery Carries blood into the kidneys to be filtered. Renal Vein Carries filtered blood from the kidney and returns it back into circulation by way of the inferior vena cava. 7 Kidneys 8 Kidneys Three parts of the kidney: ▹ Cortex ▸ Outer part of the kidney which contains most of the filtering/reabsorbing parts of the nephron. ▹ Medulla ▸ Middle layer of the kidney formed by the collecting ducts of the nephrons. ▹ Pelvis ▸ Inner part of the kidney where fluid from the collecting ducts empty and 9 10 Urinary System (steps)
