Hemorrhoids are classified into two general categories: internal and external. Internal hemorrhoids lie far enough inside the rectum that you can't see or feel them. They don't usually hurt because there are few pain-sensing nerves in the rectum. Bleeding may be the only sign that they are there. Sometimes internal hemorrhoids prolapse, or enlarge and protrude outside the anal sphincter.
Cerebrospinal fluid (CSF) collection is a test to look at the fluid that surrounds the brain and spinal cord. CSF acts as a cushion, protecting the brain and spine from injury. The fluid is normally clear. The test is also used to measure pressure in the spinal fluid. See also: CSF culture.
Cerebrospinal Fluid Function. Filed under Information | Tagged cerebrospinal, cerebrospinal fluid, spinal fluid. Cerebrospinal fluid is one that surrounds the spinal cord and brain. It is a clear fluid which is around 150 milliliters inside the cerebral cavity which lets the brain float.These fluids serve as a shock absorber thus protects the brain from any injury or sudden physical jerk.Cerebrospinal Fluid Functions.As mentioned above the major function of cerebrospinal fluid (CSF) is to protect the brain by serving as shock absorber whenever there is a sudden physical jerk or any injury that occurs.erebrospinal Fluid Function. Filed under Information | Tagged cerebrospinal, cerebrospinal fluid, spinal fluid. Cerebrospinal fluid is one that surrounds the spinal cord and brain. It is a clear fluid which is around 150 milliliters inside the cerebral cavity which lets the brain float.