What is the pathway of circulation of CSF?

What is the pathway of circulation of CSF?

[19] CSF net flow is still generally believed to flow through the ventricular system, initiated at the lateral ventricles. [5] From the lateral ventricles, CSF flows through the left and right foramen of Monro to the third ventricle. Next, it flows through the aqueduct of Sylvius into the fourth ventricle.

How does CSF enter the venous system?

The majority of the cerebrospinal fluid (CSF) is absorbed into the venous system by the arachnoid granulations. The arachnoid granulations are the protrusions of the arachnoid mater that pierce the dura mater and protrude into the lumina of the dural venous sinuses.

What is CSF and its function?

Cerebrospinal fluid (CSF) is a clear, colorless liquid found in your brain and spinal cord. CSF helps protect this system by acting like a cushion against sudden impact or injury to the brain or spinal cord. CSF also removes waste products from the brain and helps your central nervous system work properly.

What circulates through the ventricles What is the function?

The ventricles are filled with cerebrospinal fluid (CSF), which provides the following functions: Absorbs physical shocks to the brain. Distributes nutritive materials to and removes wastes from nervous tissue. Provides a chemically stable environment.

How CSF is formed in CNS?

CSF is produced mainly by a structure called the choroid plexus in the lateral, third and fourth ventricles. CSF flows from the lateral ventricle to the third ventricle through the interventricular foramen (also called the foramen of Monro).

What are the properties of CSF?

As a result, CSF contains a higher concentration of sodium and chloride than blood plasma, but less potassium, calcium and glucose and protein. Choroid plexuses also secrete growth factors, iodine, vitamins B1, B12, C, folate, beta-2 microglobulin, arginine vasopressin and nitric oxide into CSF.

What are the characteristics of CSF?

CSF Physical Features (pressure and appearance)

  • Color of the fluid—normal is clear and colorless.
  • Turbidity—cloudy or turbid CSF may indicate the presence of white or red blood cells, microbes, or an increase in protein levels.
  • Viscosity—normal CSF will have the same consistency as water.

What are Atria?

The two atria are thin-walled chambers that receive blood from the veins. The two ventricles are thick-walled chambers that forcefully pump blood out of the heart. The right atrium receives deoxygenated blood from systemic veins; the left atrium receives oxygenated blood from the pulmonary veins.

What are the main parts of CNS?

The nervous system has two main parts:

  • The central nervous system is made up of the brain and spinal cord.
  • The peripheral nervous system is made up of nerves that branch off from the spinal cord and extend to all parts of the body.

Where does the CSF originate and what route does it take through and around the CNS?

What are normal patterns of cerebrospinal fluid flow?

The pathway of the cerebrospinal fluid is as follows: The CSF passes from the lateral ventricles to the third ventricle through the interventricular foramen (of Monro) . From the third ventricle, the CSF flows through the cerebral aqueduct (of Sylvius) to the fourth ventricle.

What are the main functions of CSF?


  • Protect
  • Detect
  • Respond
  • Recover
  • What should I avoid with a CSF leak?

    – Stay in bed with your head raised on pillows. – Do not blow your nose. – Avoid coughing. – Avoid vomiting. – Avoid straining when you have a bowel movement.

    What circulates through the ventricles?

    The ventricular system is a set of four interconnected cavities known as cerebral ventricles in the brain. Within each ventricle is a region of choroid plexus which produces the circulating cerebrospinal fluid (CSF). The ventricular system is continuous with the central canal of the spinal cord from the fourth ventricle, allowing for the flow of CSF to circulate.