Post on 01-Apr-2015
Urinary/ExcretorySystem
B. Lane
SHS
Objectives• Explain the function of the excretory
organs• Describe the structure and function of the
organs in the urinary system• Explain how the kidneys regulate water
balance• List and describe some common disorders
of the urinary system
Functions of the Urinary System'sFunctions of the Urinary System'sFunctions of the Urinary System'sFunctions of the Urinary System's Waste collection (produce urine) - remove
substances from the blood, to form urine Waste removal (excrete urine) -after the urine
is produced it is excreted from the body
Regulation - electrolyte concentration, acid-base balance, amount of body fluids, and B/P
Aids RBC formation (erythropoiesis)
• 2 Kidneys2 Kidneys
• 2 Ureters2 Ureters
• 1 Bladder1 Bladder
• 1 Urethra1 Urethra
• 2 Kidneys2 Kidneys
• 2 Ureters2 Ureters
• 1 Bladder1 Bladder
• 1 Urethra1 Urethra
Protected by–Muscles
–Adipose tissue
–Abdominal organs
Bell WorkBell Work
•Draw and label the structures of the urinary system
Internal Structure of Kidney• Cortex• Medulla• Pyramid(s)• Papilla• Calyx• Pelvis
Nephron - Microscopic Structure
• Renal Corpuscle
• Renal Tubule
http://coe.fgcu.edu/faculty/greenep/kidney/nephron.html
1. Renal Corpuscle
* Bowman’s Capsule
* Glomerulus
2. Renal Tubule
* Proximal Convoluted Tubule
* Loop of Henle
* Distal Convoluted Tubule
* Collecting Tubule
Formation of Urine• Filtration - by the glomerulus
• Reabsorption - within the renal tubules
• Secretion - by the tubular cells
Assignment
• Read pages 456 to 463
• Answer review questions on workbook pages 200 to 201
• Label diagram workbook page 207