Upload
jessie-gibbs
View
217
Download
1
Tags:
Embed Size (px)
Citation preview
By: Taylor Currin, Jamie Steckler & Bailey Gibbons
Period 4
The Urinary System
To remove liquid waste from the blood in the form of urine
Keep a stable balance of salts and other substances in the blood
Function:
Function Continued:
Produce erythropoietin
The kidneys remove urea from the blood
Function Continued:
Maintains normal concentrations of electrolytes within body fluids
Regulates pH and volume of body fluids
Major Organs:
Reddish-brown
Bean-shaped
Concave on medial side, convex on lateral side
The Kidneys:
Kidneys Continued:
Renal Sinus
Renal PelvisMajor CalycesMinor CalycesRenal Papillae
Kidneys Continued:
Renal MedullaRenal Pyramids
Renal CortexNephronsRenal Columns
Function of the Kidneys:
Maintain homeostasis Regulates composition volume and the pH of
extracellular fluid
Function of the Kidneys:
Secretes erythropoietin Plays a role in activating Vitamin D Maintains blood volume and blood pressure
Location of Kidneys:
Lie on either side of the vertebral column In a depression Retroperitoneally
Function: tube that carries urine from the kidney to the urinary bladder
Location: extends downward behind the parietal peritoneum
Ureters:
Ureters Continued:
25 cm longContains 3 layers:
Mucous coat (inner layer)Muscular coat (middle layer)Fibrous coat (outer layer)
Location:Behind symphysis pubisBeneath the parietal peritoneum
Function:Stores urineForces it into urethra
Urinary Bladder:
Urinary Bladder: Hollow, distensible, muscular organ Trigon 4 layers:
Mucous coat (inner layer)Submucous coat (second layer)Muscular coat (third layer)
Detrusor muscleInternal urethra sphincter
Serious coat (outer layer)
Function: Conveys urine to outside of body
Location: below the bladder (connected) and leads to outside of body
Urethra:
Urethra Continued:
Lined with mucous membraneThick layer of smooth muscle tissueMucous Glands
Urethral glands
Renal Arteries Interlobar Arteries Afferent Arterioles Renal Vein
Renal Blood Vessels:
Pathway of Blood within the Kidney: 1. Renal artery
2. Interlobar Artery
3. Arcuate Artery
4. Cortical Radiate Artery
5. Afferent Arteriole
6. Glomerular Capillaries
7. Efferent Arteriole
8. Peritubular Capillaries
9. Cortical Radiate Vein
10. Arcuate Vein
11. Interlobar Vein
12. Renal Vein
Nephron Structure- What is a Nephron?
Renal CorpuscleGlomerulusGlomerular Capsule
Renal Tubule
Nephrons:
1. Filtration
2. Reabsorption
3. Secretion
Urine; a collection of substances that has not been reabsorbed during glomerular filtration or tubular reabsorption
Formation of Urine:
Video on Filtration:
95% water Contains urea and uric acid Amino acids & variety of electrolytes
Reflects on ones dietary intake and physical activity
Composition of Urine:
Urea Source: By-product of amino acid catabolismEnters the renal tubule by filtration
Uric Acid Source: product of the metabolism of certain organic bases in nucleic acidsActive transport reabsorbs all the uric acid
present in glomerular filtrate
Urea & Uric Acid:
Nephrons, Collecting Ducts, Calyces of Kidney , Renal Pelvis, Ureter, Urinary Bladder, Urethra
Urine Elimination:
Diseases:
Hemolytic Uremic Syndrome
Glomerulonephritis
Kidney Stones(Chronic Kidney Disease)
Citations
"Kidney." <i>Function, Location & Area</i>. Healthline Networks Inc, 21 Apr. 2005. Web. 15 Mar. 2015. <http://www.healthline.com/human- body-maps/kidney>.
"How Your Kidneys Work." <i>The National Kidney Foundation</i>. 6 Jan. 2015. Web. 15 Mar. 2015. <https://www.kidney.org/kidneydisease/howkidneyswrk>>
"Kidney." <i>Wikipedia</i>. Wikimedia Foundation, 12 Mar. 2015. Web. 15 Mar. 2015. <http://en.wikipedia.org/wiki/Kidney>>
“Overview of Urine Transport, Storage, and Elimination System.” Boundless Anatomy and Physiology. Boundless, 02 Jul. 2014. 16 Mar. 2015. <www.boundless.com/physiology/textbooks/boundless-anatomy-and- physiology-textbook/the-urinary-system-25/urine-transport- storage-and-elimination-242/overview-of-urine-transport-storage- and-elimination-system>