Podcast
Questions and Answers
What is the function of cerebrospinal fluid in the CNS?
What is the function of cerebrospinal fluid in the CNS?
- Providing mechanical support for the brain (correct)
- Producing hormones for brain function
- Contracting and expanding with brain movements
- Absorbing nutrients from the blood
Which cells lining the ventricles mainly produce cerebrospinal fluid?
Which cells lining the ventricles mainly produce cerebrospinal fluid?
- Astrocytes
- Oligodendrocytes
- Ependymal cells (correct)
- Microglia
Increased intracranial pressure can manifest as which of the following symptoms?
Increased intracranial pressure can manifest as which of the following symptoms?
- Papilledema (swelling of the optic disc) (correct)
- Tinnitus and hearing loss
- Decreased drowsiness
- Improved coordination
What is the normal range of protein concentration in cerebrospinal fluid?
What is the normal range of protein concentration in cerebrospinal fluid?
Which condition might be indicated by an abnormally low glucose concentration in cerebrospinal fluid?
Which condition might be indicated by an abnormally low glucose concentration in cerebrospinal fluid?
What is the normal range of chloride concentration in cerebrospinal fluid?
What is the normal range of chloride concentration in cerebrospinal fluid?
What is the main site for cerebrospinal fluid (CSF) absorption?
What is the main site for cerebrospinal fluid (CSF) absorption?
Which structure adds more CSF in the 3rd ventricle?
Which structure adds more CSF in the 3rd ventricle?
What occurs at the lateral and median apertures in the 4th ventricle?
What occurs at the lateral and median apertures in the 4th ventricle?
Which condition would lead to compression of arachnoid villi tips, preventing blood reflux?
Which condition would lead to compression of arachnoid villi tips, preventing blood reflux?
What happens when the venous pressure exceeds cerebrospinal fluid (CSF) pressure?
What happens when the venous pressure exceeds cerebrospinal fluid (CSF) pressure?
Which structure prevents CSF from flowing back into the 3rd ventricle?
Which structure prevents CSF from flowing back into the 3rd ventricle?
What sign is characterized by flexion of the hip at a 90-degree angle followed by pain during extension of the leg?
What sign is characterized by flexion of the hip at a 90-degree angle followed by pain during extension of the leg?
What is the most common symptom of meningitis?
What is the most common symptom of meningitis?
Where is a lumbar puncture typically performed for cerebrospinal fluid (CSF) analysis?
Where is a lumbar puncture typically performed for cerebrospinal fluid (CSF) analysis?
Which condition could cause an increase in white blood cells (WBC) count in the cerebrospinal fluid?
Which condition could cause an increase in white blood cells (WBC) count in the cerebrospinal fluid?
What is a common sign of increased intracranial pressure?
What is a common sign of increased intracranial pressure?
Which factor would imply a change in vascular permeability when found in the cerebrospinal fluid?
Which factor would imply a change in vascular permeability when found in the cerebrospinal fluid?
