Urinary System Sources:

Livestrong.com

Mayoclinic.com

Pennmedicine.org

Ivyrose.org

Ipch.org

Urinary system diseases

1. Urinary tract infection is where bacteria enters the urinary tract.
2. Internal cystitis is a chronic bladder condition causing pelvic pain.
3. Kidney stones are small pieces of material stuck in urinary tract causing bloody urine.
4. Bladder cancer is cancerous bladder cells continuously creating mutations and dying off forming a tumor.
5. http://m.youtube.com/watch?feature=plpp&v=u11DfF6fuCM

 

Urethra comparison

A Male urethra is close around 20 cm in length compared to the 4 cm length of a female. Males urethra is a dual threat having 2 uses where in a female it only has one use.

Accessory organs

• Ureter connects kidney and bladder where contractions move urine into bladder.
• Bladder holds the urine with a mucosa valve to prevent back flow of urine.
• Urethra tube extending from bladder that removes urine from body.

Urine formation

Kidneys filter wastes produced from blood . Water, salts, and other substances make filtrate that travels thru tubules making urine.

Nephron function in kidneys.

http://m.youtube.com/#/watch?v=aQZaNXNroVY&desktop_uri=%2Fwatch%3Fv%3DaQZaNXNroVY

Glomerular extract filtrate into nephron tubular a where urine has wastes added and taken away.

Urine (excretion and properties)

Urine is 95% water and 5% solutes.
It is slightly acidic.
The glomerular filtrate moves nutrients in the excretion process.