If a Physician Wanted to Collect Spinal Fluid for Analysis

question 76

Multiple Choice

If a physician wanted to collect spinal fluid for analysis s/he would want to place a needle between the:

• A) dura mater and skull.
• B) dura mater and pia mater.
• C) arachnoid and pia mater.
• D) pia mater and brain.
• E) dura mater and arachnoid.

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Definitions:

Osmotic Pressure

Pressure exerted by the number of nondiffusable particles in a solution; the amount of pressure needed to stop the flow of water across a membrane.

Sodium Phosphate

An inorganic compound used in various applications, including as a laxative, a food additive, and in dental products.

Internal Sphincter

refers to a ring of muscle located in the anus or the urethra that helps control the expulsion of feces or urine from the body.

Enema Tube

A medical device used to inject fluid into the rectum and colon, often for the purposes of clearing the bowels or administering medication or nutrition.