Choroid plexus. Light micrograph of a section through the choroid plexus of the brain. The choroid plexus (orange at top of image) is a plexus of cells that produces the cerebrospinal fluid in the ventricles of the brain. The choroid plexus consists of modified ependymal cells. These cuboidal epithelial cells surround a core of capillaries and loose connective tissue. The choroid plexus folds into many villi around each capillary, creating frond-like processes that project into the ventricles. Tight junctions between the cells prevent the majority of substances from crossing the cell layer into the cerebrospinal fluid (CSF); thus the choroid plexus acts as a blood–CSF barrier. Magnification: x250 when printed at 10 centimetres wide. Human tissue. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Gschmeissner, Steve |
Taille de l’image : | 3871 px × 4572 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |