Advertisement Upgrade to remove ads

What is the function of the excretory system?

to remove wastes from the body

How does the excretory system maintain homeostasis?

smooth muscle contractions that generate heat
-trapped by adipose tissue

3 types of excretion

-from skin
-from colon
-of fluid

Excretion from skin

sweat that contains salt (NaCl)

Excretion from colon

solid wastes (feces)

Excretion of fluid

formed in the kidneys

Function of Kidneys

filter wastes from blood by diffusion/osmosis and add water to form urine

Urine Flow

kidneys -> ureter -> urinary bladder -> urethra -> out of body
urethra and urinary bladder known as U-tubes

Functional unit of kidneys

Nephron

Nephron

structure that filters blood

Dialysis

machine that does the job of kidneys

Renal

deals with kidneys

Components of Nephron

-glomerulus
-loop of henle
-collecting duct

Glomerulus

location where blood is filtered

Loop of Henle

water moves in/out of nephron, forming urine

Collecting Duct

urine held here until released through ureter

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set