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What are the cells found in the choroid plexuses that secretes CSF?

What are the cells found in the choroid plexuses that secretes CSF?

epithelial cells
The epithelial cells of the choroid plexus secrete cerebrospinal fluid (CSF), by a process that involves the movement of Na(+), Cl(-) and HCO(3)(-) from the blood to the ventricles of the brain. This creates the osmotic gradient, which drives the secretion of H(2)O.

How is CSF produced by the choroid plexus?

The choroid plexus (ChP) is a secretory tissue responsible for producing cerebrospinal fluid (CSF) in the vertebrate brain. CSF flows from the lateral to the third ventricle via the interventricular foramina (also known as the foramen of Monro), and then through the cerebral aqueduct to the fourth ventricle (Fig. 1).

What is the choroid plexus responsible for?

It is well known that the choroid plexus produces and secretes many biologically active neurotrophic factors into the CSF, being responsible for at least two-thirds of the CSF that travels between the spinal cord and brain, providing nutrients and removing waste.

Is cerebrospinal fluid produced in the choroid plexus?

The choroid plexus (ChP) is the principal source of cerebrospinal fluid (CSF), which has accepted roles as a fluid cushion and a sink for nervous system waste in vertebrates.

What are the two functions of CSF?

Cerebrospinal fluid has three main functions:

  • CSF protects brain and spinal cord from trauma.
  • CSF supplies nutrients to nervous system tissue.
  • CSF removes waste products from cerebral metabolism. ×

What are the characteristics of the choroid plexuses?

The choroid plexus is a vascular convolute, consisting of epithelial cells (a type of microglia), fenestrated blood vessels, and stroma, which lie in the ventricular system of the brain. It is the main source of cerebrospinal fluid (CSF) and actively regulates the constituents in CSF.

What is the choroid plexus in the brain?

The choroid plexus lines the ventricles of your brain, which store the CSF. The choroid plexus is made of connective tissue, blood vessels, and the ependymal cells. In adults, CPP tends to form in the fourth ventricle, while in children it forms on the lateral ventricle.

Where is the choroid plexus in the brain?

The choroid plexuses, found in the lateral, third and fourth ventricles of the brain (adjacent to the embryonic dorsal midline in the hindbrain, diencephalon, and telencephalon, respectively) are epithelial tissue masses highly vascularized with fenestrated blood vessels (Figure 1).

What part of the brain is the choroid plexus in?

The choroid plexus resides in the innermost layer of the meninges (pia mater) which is in close contact with the cerebral cortex and spinal cord. It is a highly organized tissue that lines all the ventricles of the brain except the frontal/occipital horn of the lateral ventricles and the cerebral aqueduct.

What is the choroid plexus made of?

The choroid plexus is located within the cerebral ventricles and is made of epithelial cells, loose connective tissue (tela choroidea), and permeable capillaries. It produces cerebrospinal fluid. The choroid plexuses also form the blood-CSF barrier alongside arachnoid and arachnoid villi 2.

How is CSF transported through the choroid plexus?

The choroid plexus consists of many capillaries, separated from the ventricles by choroid epithelial cells. Fluid filters through these cells from blood to become cerebrospinal fluid. There is also much active transport of substances into, and out of, the CSF as it is made.

How does the choroid plexus affect the central nervous system?

The blood–cerebrospinal fluid barrier has also been shown to modulate the entry of leukocytes from the blood to the central nervous system. The choroid plexus cells secrete cytokines that recruit monocyte-derived macrophages, among other cells, to the brain.

Where does the choroid plexus stroma come from?

As the choroid plexuses themselves do not have distinct proliferative zones; there is much evidence showing (and is widely accepted) the choroid plexus stroma has mesenchymal origins, like meningeal cells, while the actual plexus epithelial cells are derived from neuroepithelium.

Is the epithelium of the choroid plexus ciliated?

The epithelium of the choroid plexus is continuous with the ependymal cell layer that lines the ventricles. The cells of the choroid plexus are non ciliated but, unlike the ependyma, the choroid plexus epithelial layer has tight junctions between the cells on the side facing the ventricle (apical surface).