The function of the urinary system Flashcards
1
Q
What does the urinary system consist of?
A
- kidneys
- bladder
- urethra
- ureter
2
Q
Describe the function of the bladder?
A
- organ that collects urine from the kidneys before urination
3
Q
How does the urine enter and leave the bladder?
A
- enters bladder thru ureter
- leaves thru urethra
4
Q
What are the 2 blood vessels attached to the kidney?
A
- renal artery
- renal vein
5
Q
What is the function of the renal artery?
A
- deliver oxygen rich blood supply to cells in each kidney
6
Q
What is the function of the renal vein?
A
- once blood has been processed it leaves kidney via renal veins + transported via vena cava back to heart
7
Q
What are the 2 functions of the kidney?
A
- excretion
- osmoregulation
8
Q
Define excretion
A
- removal of toxic waste products made in cells during during metabolism
9
Q
Define osmoregulation
A
- regulation of conc of solutes in body fluids
- regulates salt and water
10
Q
What does osmoregulation prevent?
A
- ensures cells dont burst or shrink
- which would affect cell metbabolism
11
Q
Where are the 2 kidneys located?
A
At the back of the abdominal cavity, either side of the spine
12
Q
Describe the kidneys in the urinary system
A
- kidneys receive blood from renal artery
- kidneys contain millions of tiny filtration units called nephrons
- blood comes into kidneys under high pressure to make filtration efficient
- blood then leaves thru renal veins
- filtered waste products are excreted by kidney as urine
- urine goes thru ureter, tube connecting kidneys to bladder
- the bladder is a muscular sac which stores urine
13
Q
What is the function of the renal artery?
A
Supplies blood to kidney
14
Q
What is the function of the ureter?
A
Carries urine from kidneys to bladder
15
Q
What is the function of the bladder?
A
Muscular sac that stores urine before it leaves thru urethra
