Cerebrospinal Fluid Absorption Mechanism
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Questions and Answers

What is the main mechanism of absorption of cerebrospinal fluid (CSF) in the body?

  • Active transport through specialized cells in the meninges
  • Diffusion across the blood-brain barrier
  • Filtration due to pressure gradient between hydrostatic pressure in the subarachnoid space fluid and the pressure in the dural sinus blood (correct)
  • Reabsorption through the spinal cord
  • How much CSF is typically formed and absorbed by the body daily?

  • 1000ml
  • 750ml
  • 200ml
  • 500ml (correct)
  • What effect does coughing have on cerebrospinal fluid (CSF) pressure?

  • Decreases pressure by increasing absorption
  • No effect on pressure
  • Causes CSF leakage
  • Increases pressure by decreasing absorption (correct)
  • Which event can increase cerebrospinal fluid (CSF) pressure by compressing the Internal Jugular Vein?

    <p>Compression of Internal Jugular Vein</p> Signup and view all the answers

    What is the protective function of cerebrospinal fluid (CSF) related to brain injuries?

    <p>Acts as a cushion preventing brain damage from shock</p> Signup and view all the answers

    In the case of a severe blow to the head, what injury pattern may occur due to the movement of the brain against the skull bone?

    <p>Counter coup injury</p> Signup and view all the answers

    What is the primary function of the medium of exchange between blood and brain tissues?

    <p>Regulation of cranial content volume</p> Signup and view all the answers

    Which procedure involves passing a needle between the occipital bone and atlas to collect cerebrospinal fluid?

    <p>Cisternal puncture</p> Signup and view all the answers

    What can happen in cases of Noncommunicating (Internal) hydrocephalus?

    <p>Obstruction to CSF escape routes</p> Signup and view all the answers

    In lumbar puncture, why is the lumbar region preferred for introducing the needle into the subarachnoid space?

    <p>To widen the subarachnoid space</p> Signup and view all the answers

    What constitutes an essential purpose of collecting cerebrospinal fluid through cisternal or lumbar puncture?

    <p>For diagnostic purposes</p> Signup and view all the answers

    What condition is associated with atrophy of the brain, mental weakness, and convulsions?

    <p>Hydrocephalus</p> Signup and view all the answers

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