why are there many small channels in the dialyser rather than one large one
Answers
Dialyser is a tool:
Haemodialysis is a process by which excess waste products and water are removed from the blood by using a dialyser, also known as an artificial kidney.
This is for those people who have kidney failure.
There are mainly two forms, Haemodialysis Dialysis and Peritoneal Dialysis.
The dialyser is a bundle of hollow fibres made up from a semi-permeable membrane.
The membrane is thin film with thousands of microscopically small holes.
The holes allow water and small dissolved substances to pass through but retain the proteins and blood cells, which are too large. This is why there are multiple channels in the dialyser instead of one larger one.
The process by which it is done is haemodialysis. It a process by which waste products and water are removed from the system by using a dialysis unit. It is used for kidney failure people.
In haemodialysis, the membrane is too thin and it contains a lot of holes. This microscopic holes allow water and waste particles to pass through it but does not allow proteins and blood particles to pass through them.