Excretion Flashcards
(19 cards)
What is excretion?
The removal of waste products that have been absorbed and produced in the body
What does renal mean?
Renal means to do with kidneys
Where is urea removed from the blood by?
The kidneys
How does the kidneys remove urea from the blood?
The kidneys filter all the blood in your body to remove urea from the blood
What are the two combinations of urine?
Excess water and waste products.
What connects the kidneys to the bladder?
The ureters
What organ collects the urine before excreting it?
The bladder
What organ connects the bladder to the outside of the human body where the urine is excreted?
The urethra
Where is urea produced and why?
Urea is produced in the liver because of too much protein that the body doesn’t need.
What is filtration?
When kidney filters the blood to remove unwanted minerals, urea and excess water allowing metabolic waste products to be exerted
What is absorption?
The body’s needs are reabsorbed into the blood preventing them from being lost in the urine.
What is diffusion?
Diffusion transports substances into and out of the kidney cells.
What causes kidney failure?
If the kidney looses its ability to filter and remove metabolic waste, allowing it build up which can be harmful and fatal.
What causes kidney stones?
Kidney stones form when fluid intake is too low resulting in a high concentration of solutes in the kidney.
What causes bladder infections?
Bacteria enters the bladder and causes an infection causing swelling and pain when urinating.
What would happen if a kidney stone got stuck in the urinary tract
It could be excreted but bigger ones could get stuck and cause pain as well as bleeding and blocked flow for urine.
Which two blood vessels carry the blood away and to the kidney
Renal artery
Renal vein
What is the difference between renal artery and renal vein
Renal artery’s brings blood to the kidneys and renal vein takes blood away from the kidneys
What’s the purpose of excretory system?
To remove waste products from the body and maintain internal balance
