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Questions and Answers
Which of the following best describes hydrocephalus?
Which of the following best describes hydrocephalus?
- The obstruction of CSF flow within the ventricular system.
- The active distension of the ventricular system of the brain due to an imbalance between CSF production and absorption. (correct)
- The expansion of ventricles secondary to brain shrinkage from a diffuse atrophic process.
- The obstruction to CSF flow outside the ventricular system.
How is cerebrospinal fluid (CSF) formed in the brain?
How is cerebrospinal fluid (CSF) formed in the brain?
- CSF is secreted predominantly by the choroid plexus of the lateral, third, and fourth ventricles. (correct)
- CSF flows in a caudal direction through the ventricular system and exits through the foramina of Luschka and Magendie into the subarachnoid space.
- CSF absorption occurs through the arachnoid granulations into the venous system.
- CSF is produced at a rate of 500 ml/day (0.35 ml/min).
What is the incidence of hydrocephalus in births?
What is the incidence of hydrocephalus in births?
- 1 in 100,000 births
- 1 in 10,000 births
- 1 in 1,000 births (correct)
- 1 in 100 births
How does CSF flow through the brain?
How does CSF flow through the brain?
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What is the difference between 'obstructive' and 'communicating' hydrocephalus?
What is the difference between 'obstructive' and 'communicating' hydrocephalus?
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