Cisterna
Cisterna
Cisterna (pronounced: sis-ter-na) is a term used in anatomy and neuroscience to describe a fluid-filled space in the body.
Etymology
The term "cisterna" is derived from the Latin word "cisterna" which means "reservoir". This is a fitting description as cisternae in the body serve as reservoirs for various fluids.
Definition
In the context of anatomy and neuroscience, a cisterna is a flattened membrane disk of the endoplasmic reticulum and Golgi apparatus. In the nervous system, cisternae are spaces in the brain filled with cerebrospinal fluid.
Related Terms
- Cisterna Magna: Also known as the cistern of the great vein, it is one of the largest cisterns in the brain, located between the cerebellum and the dorsal surface of the medulla oblongata.
- Cisterna Chyli: A dilated sac at the lower end of the thoracic duct in most mammals into which lymph from the intestinal trunk and two lumbar lymphatic trunks flow.
- Cerebrospinal Fluid: A clear, colorless body fluid found in the brain and spinal cord. It is produced by the specialised ependymal cells in the choroid plexuses of the ventricles of the brain.
- Endoplasmic Reticulum: A type of organelle in the cells of eukaryotic organisms that forms an interconnected network of flattened, membrane-enclosed sacs or tubes known as cisternae.
- Golgi Apparatus: An organelle found in most eukaryotic cells. It is made up of a series of flattened stacked pouches called cisternae and is located in the cytoplasm next to the endoplasmic reticulum and near the cell nucleus.
External links
- Medical encyclopedia article on Cisterna
- Wikipedia's article - Cisterna
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