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A cisterna (pl.: cisternae) is a flattened membrane vesicle found in the endoplasmic reticulum and Golgi apparatus. [1] Cisternae are an integral part of the packaging and modification processes of proteins occurring in the Golgi.
The endoplasmic reticulum is found in most eukaryotic cells and forms an interconnected network of flattened, membrane-enclosed sacs known as cisternae (in the RER), and tubular structures in the SER. The membranes of the ER are continuous with the outer nuclear membrane. The endoplasmic reticulum is not found in red blood cells, or spermatozoa.
The endoplasmic reticulum (ER) is a synthesis and transport organelle that branches into the cytoplasm in plant and animal cells. [3] The Golgi apparatus is a series of multiple compartments where molecules are packaged for delivery to other cell components or for secretion from the cell. [ 4 ]
In most eukaryotes, the Golgi apparatus is made up of a series of compartments and is a collection of fused, flattened membrane-enclosed disks known as cisternae (singular: cisterna, also called "dictyosomes"), originating from vesicular clusters that bud off the endoplasmic reticulum (ER).
In cellular neuroscience, Nissl bodies (also called Nissl granules, Nissl substance or tigroid substance) are discrete granular structures in neurons that consist of rough endoplasmic reticulum, a collection of parallel, membrane-bound cisternae studded with ribosomes on the cytosolic surface of the membranes. [1]
The spine apparatus is connected to the smooth-surfaced endoplasmic reticulum of the dendrite. [5] Consisting of continuous parallel flattened cisternae , the spine apparatus has a large surface area which is important for its function.
The Golgi apparatus, which participates in glycosylation and transport of proteins and lipids in the secretory pathway, consists of a series of stacked cisternae (flattened membrane sacs). Interactions between the Golgi and microtubules are thought to be important for the reorganization of the Golgi after it fragments during mitosis. [ 6 ]
Working with light and electron microscopy, the oil bodies of various Jungermanniopsida species were observed to be derived from dilations of endoplasmic reticulum cisternae. [ 10 ] [ 27 ] In certain Marchantiopsida species, again based upon light and electron microscopy, oil bodies were hypothesized to result from the fusion of golgi ...