Peritoneal dialysis and hemodialysis are both used to manage kidney failure. Hemodialysis involves the use of a synthetic membrane called a dialyzer, which filters wastes and removes excess fluid from the blood. Peritoneal dialysis does not use a dialyzer.
<h3>What do you mean by Dialysis?</h3>
Dialysis may be defined as the process of removing blood from an artery, purifying it by dialysis, adding vital substances, and returning it to a vein.
In hemodialysis, your entire blood is circulated outside and it is filtered with the help of an instrument known as a dialyzer. While in peritoneal dialysis, clean blood flows through a tube into the part of the abdomens. The biggest difference in these two dialysis processes is that Hemodialysis requires an artificial kidney machine to filter blood while peritoneal dialysis does not require such kind of arrangement.
Therefore, the difference between hemodialysis and peritoneal dialysis is hemodialysis occurs outside the body while peritoneal dialysis occurs inside the body.
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Answer:
The correct option is : c. subdural space-contains cerebrospinal fluid
Explanation:
The meninges are the protective membranes covering spinal cord and the brain. The meninges is composed of three membrane layers- dura mater, arachnoid mater, pia mater.
Dura mater is the thick durable outermost membrane of the meninges.
Arachnoid mater: It is the middle layer, present between the dura mater and the pia mater. It has a fine spider web-like appearance and thus it is named after the Greek word Arachne, meaning spider.
The pia mater or pia: It is a very thin and delicate innermost layer, which is present on the surface of the brain. The pia mater is loosely connected to arachnoid layer and is fused or firmly bound to the surface of the brain.
The space between arachnoid mater and pia is known as the subarachnoid space. This space is filled with the cerebrospinal fluid.
Therefore, subdural space-contains cerebrospinal fluid is incorrect and thus not the correct match.
