Source:http://linkedlifedata.com/resource/umls/id/C0036226
MSH: A network of tubules and sacs in the cytoplasm of SKELETAL MUSCLE FIBERS that assist with muscle contraction and relaxation by releasing and storing calcium ions.,CSP: special form of agranular reticulum found in the sarcoplasm of striated muscle and comprising a system of smooth surfaced tubules forming a plexus around each myofibril.,GO: A fine reticular network of membrane-limited elements that pervades the sarcoplasm of a muscle cell; continuous over large portions of the cell and with the nuclear envelope; that part of the endoplasmic reticulum specialized for calcium release, uptake and storage. [GOC:mtg_muscle, ISBN:0124325653, ISBN:0198547684],NCI: The endoplasmic reticulum of striated muscle, specialised for the sequestration of calcium ions that are released upon receipt of a signal relayed by the T tubules from the neuromuscular junction. (On-line Medical Dictionary)