GENERAL HISTOLOGY

Detailed explanation-1: -Sarcoplasm is the cytoplasm of a muscle fibre. It is a water solution containing ATP and phosphagens, as well as the enzymes and intermediate and product molecules involved in many metabolic reactions. The most abundant metal in the sarcoplasm is potassium.

Detailed explanation-2: -Sarcoplasm: it is the cytoplasm (material or protoplasm within a living cell, excluding the nucleus) of striated muscle cells.

Detailed explanation-3: -The sarcoplasmic reticulum (SR) is a specialized form of the endoplasmic reticulum of muscle cells, dedicated to calcium ion (Ca2+) handling, necessary for muscle contraction and relaxation.

Detailed explanation-4: -The cell membrane of a muscle cell is known as the sarcolemma and the cytoplasm is called sarcoplasm. The sarcoplasm contains myoglobin, an oxygen storage site, as well as glycogen in the form of granules in the cytosol, which both provide an energy supply.