These are my biology excretory system notes notes. I've created them on my IPad with Goodnotes, and it's full-colour HD notes. They include many useful diagrams and information!
Content Covered:
- functions (4 functions)
- organs
- the kidney (functions and structure)
- urine formation (4 ste...
, excretion process of separating excretory system regulates the
' '
- -
wastes from body fluids then volume & composition of body fluids
eliminating from body by excreting metabolic wastes &
recycling substances
functions
-
produces urine filtrate of the nephron upon leaving the collecting duct
-
- converted to less toxic
compound
→
composes 50% of urine
maintenance of water salt balance balance in the blood
'
-
-
>
blood volume is closely linked to blood volume
by regulating salts in blood kidneys involved in blood pressure
>
,
"
>
kidneys maintain level of Kt HC 05 Ca , .
in blood
'
maintenance of acid base balance
- -
kidneys regulate blood pH at 7.4 by :
>
excreting Ht l urine is acidic )
>
reabsorbing HC 05
secretion of hormones kidneys assist endocrine system in hormone sectio
-
-
kidneys secrete : a parathyroid gland releases PTH calc it rot
> →
ca Ici trot active form of vitamin D
-
-
-
vitamin D promotes ca
"
absorb ti on from digestion tract
erythropoietin stimulates of red blood cells production
-
-
released in response to T Oz demand or t Oz carrying
-
capacity of blood
renin leads the secretion of hormone aldosterone from adrenal cortex
-
-
/
!÷
>
surrounded by a cushion of fat for protection
can survive w/ 7 kidney as size will 9 to accommodate
>
O
'
Ureters carry urine from kidneys to bladders
-
>
moved by peristaltic actions of smooth muscle tissue .
urinary bladders urine is stored before discharge
-
-
>
drainage is controlled by sphincters 12 rings of muscle)
both must relax for urine to drain from bladder
-
-
urete
innermost involuntarily controlled
-
-
urethra tube where urine exits bladder 1 body
-
-
merges with ductus deferens ( reproductive tract ) to
>
form single passage
>
females reproductive &
-
urinary tract have separate -
bladder
openings
urethra
-
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Studywithmeee. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.12. You're not tied to anything after your purchase.
