The daily production of CSF is
Correct Answer: 550 ml
Description: (A) 550 ml# Cerebrospinal fluid (CSF)> Total volume of CSF is 150 mis.> Daily production is 550 mls/day so the CSF turns over about 3 to 4 times per day.> CSF is formed by the choroid plexus (50%) and directly from the walls of the ventricles (50%).> CSF flows through the foramens of Magendie & Luschka into the subarachnoid space of the brain and spinal cord.> It is absorbed by the arachnoid villi (90%) and directly into cerebral venules (10%).> Normal intracerebral pressure (ICP) is 5 to 15 mmHg.> Rate of formation of CSF is constant and is not affected by ICR> Absorption of CSF increases linearly as pressure rises above about 7 cms H20 pressure.> At a pressure of about 11 cms H20, the rate of secretion & absorption are equal.
Category:
Physiology
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now