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Kidney Function and Structure

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on 21 May 2014

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Transcript of Kidney Function and Structure

Kidney Structure
Kidney Function and Structure
The internal structure is made of the larger components of the kidney
Internal Structure
Renal Cortex
The inner portion of the kidney, contains eight to twelve renal pyramids
Renal Medulla
Kidney Function
The glomerulus in the nephron of the kidneys filter Ammonia, Uric Acid, Urea, and Creatinine out of the blood stream. The resulting combination of waste products and water form urine, which exits the kidneys through the ureters
Forming Urine
Regulation of chemical substances in the blood.
-Chloride, Potassium, Sodium, Bicarbonate
-Balance of body water content and salt
The renal cortex is the outer portion of the kidney. This contains about one million nephrons, the filtration units in the kidneys
Renal Pyramids
Triangular divisions in the kidney's medulla
Renal Columns- Cortical tissue that extends into the medulla between renal pyramids
Renal Papilla
The innermost end of the renal pyramids
Renal Pelvis
The renal pelvis is the basin-like area that collects urine from the nephrons
Narrows into the upper end of the ureters
Thibodeau Patton Anatomy and Physiology textbook
Reanl Calyx
The papilla of each pyramid open into a calyx
Microscopic Structure
Renal Corpuscle
Renal Tubule
Bowman's Capsule
Cup-shaped end of a renal tubule or nephron, encloses the glomerulus
The network of blood capillaries in the Bowman's capsule
Proximal Convoluted Tubule
First part of renal tubule, between Bowman's Capsule and Loop of Henle. Assists in reabsorption of sugar, sodium, water, and chloride
Loop of Henle
Extension of proximal tubule, reabsorbs water and helps create a concentration gradient, resulting in more concentrated urine
Distal Convoluted Tubule
Ascends away from Loop of Henle, reabsorbs sodium and water while secreting hydrogen potassium
Collecting Tubule
Straight part of renal tubule, concentrates and transports urine from the nephrons
-around 50% of the urea filtered out of the blood is reabsorbed. It helps concentrate other waste products that are more toxic by maintaining the balance between urine and blood
What is Urine made of?
This is a schematic diagram illustrating the kidneys' ability to separate particles in the blood in order to maintain optimal body chemistry. Blood enters the kidney through the renal artery. In the kidney, the blood undergoes filtration and dialysis to separate the particles that will be removed from the body (through the ureter to the bladder) from those that will be returned to the circulating blood (through the renal vein).

( http://www.chemistry.wustl.edu/~edudev/LabTutorials/Dialysis/Kidneys.html )

Kidney Labeling Sheet Answers
A) Renal Cortex
B) Pyramid
C) Renal Capsule
D) Hilus
E) Major Calyx
F) Renal Pelvis
G) Papilla
H) Ureter
I) Minor Calyx
Labeling Sheet Word Bank
Minor Calyx
Renal Sinus
Major Calyx
Renal Pelvis
Renal Capsule
Renal Cortex
Full transcript