Urinary System

Function: the urinary system filters blood, creates, stores, and excretes urine from the body.

Components & Functions:

Kidneys

• Filter blood.
• Helps maintain water, solute, and pH in blood.
• Helps regulate (decrease) B/P via Renin release.
• Secretes Erythropoeitin, which stimulates erythrocyte (RBC) production.
• Secretes Calcitrol, which activates Vitamin D.

Ureters

• Carry urine to the bladder.

Bladder

• Stores urine-approx. 0.5-1.0 L.

Urethra

• In females-an opening to secrete urine.
• In males-an opening to secrete urine and semen.

Links!

Micturation

• http://camel2.conncoll.edu/academics/zoology/courses/zoo202/Excretory/micturition.html

Kidney Structure

• http://www.sumanasinc.com/webcontent/anisamples/majorsbiology/kidney.html

Kidney Stones

• http://www.umm.edu/patiented/articles/kidney_stones_animation_000475.htm

Kidney Quiz

• http://www.gen.umn.edu/faculty_staff/jensen/1135/webanatomy/wa_urinary/wa_kidney_model_1.htm

Urinary (Excretory) Quiz

• http://www.whitman.edu/biology/vpd/excquiz.html

Fetal Pig Urinary (Excretory) Dissection

• http://www.whitman.edu/biology/vpd/excretory.html