urinary system
Download
Skip this Video
Download Presentation
Urinary System

Loading in 2 Seconds...

play fullscreen
1 / 12

Urinary System - PowerPoint PPT Presentation


  • 118 Views
  • Uploaded on

Urinary System. Can you hold it long enough for me to get through this lecture?. QUICK REVIEW OF ELIMINATION. Lungs eliminate CO2 Sweat glands eliminate excess heat, salt Digestive tract- indigestible solids, bacteria Urinary tract is the main system of elimination. A little vocab.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Urinary System' - Rita


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
urinary system

Urinary System

Can you hold it long enough for me to get through this lecture?

quick review of elimination
QUICK REVIEW OF ELIMINATION
  • Lungs eliminate CO2
  • Sweat glands eliminate excess heat, salt
  • Digestive tract- indigestible solids, bacteria
  • Urinary tract is the main system of elimination
a little vocab
A little vocab
  • Uria or Ur- urine
  • Cyst- bladder
  • Nephr or Ren- kidney
  • Dys- painful
slide4
Anuria
    • Without urine
  • Cystitis
    • Inflammation of the bladder
  • Dysuria
    • Painful urination
  • Hematuria
    • Blood I urine
  • Hydronephrosis
    • > water in kidney
  • Renal
    • Pertaining to kidney
the urinary tract
The Urinary Tract
  • Urinary tract consists of 2 kidneys, 2 ureters, one bladder and one urethra.
  • Kidney location:
    • Retroperitoneal
    • Dorsal wall of abdominal cavity
    • 12th thoracic and 3rd lumbar vertebrae
  • Urethra
    • 1.5 inches in women, 8 inches in men
slide6
Outer layer- Cortex
  • Inner layer- Medulla
  • Calyx- collects urine as it is formed, join together to form the ureter
slide7
Kidneys filter blood- 2, 000 L/day (500 gal)
    • remove waste products and reabsorb water, other valuable substances.
    • 1.5 L of urine/day
  • Metabolism produces toxic substances- esp nitrogen containing waste as a by-product of protein breakdown
  • We eliminate nitrogen as urea- water soluble
slide8
The main functional unit of the kidney is called the NEPHRON.
  • 1 million per kidney
  • Most of nephron located in renal cortex
  • Loop of Henle is located in the renal medulla
slide9
Capillaries in glomerulus filter blood- Bowman’ capsule collects ultra filtrate
  • Through passive and active diffusion, 95% of water is reabsorbed, along with K, Na, Ca
  • Other things are actively excreted, like drugs.
  • Excretion is controlled by hormones such as ADH from hypothalamus
slide10
Urine is made in 4 steps
  • Filtration
  • Reabsorption
  • Secretion
  • Excretion

A urinalysis is the most common non-invasive medical test

ordered

diseases of the kidney
Diseases of the Kidney
  • Acute Kidney failure- sudden loss of function
    • Causes: nephritis, shock, injury, heart failure or poisoning
    • Symptoms: anuria or oliguria. Uremia, nausea, coma, death
  • Chronic Kidney failure- gradual loss of function due to hypertension (high blood pressure) or endocrine disease
  • Cystitis- inflammation of the urinary bladder
dialysis kidney transplant
Dialysis, Kidney transplant
  • Hemodialysis- serves as an “artificial kidney” 2-3x/week for 2-4 hours
  • Peritoneal dialysis- uses patient’s own peritoneal lining to filter blood
  • Kidney transplant- need suitable donor. Only need one, but must take anti-rejection drugs for the life of the patient
ad