Muscular Hypertrophy is the increase in muscle size due to increased number of myofibrils et al.
Each muscle fiber (myocyte syncytium) consists of a cell membrane (sarcolemma) containing myofilaments actin and myosin arranged in end to end segments called sarcomeres. Muscle fibers are produced by fusion of multiple myoblasts during development, with the end result being a multinucleated syncytial cell which begins to produce myofilaments.
Muscle growth occurs by production of additional myofilaments within each muscle fiber, the process called cellular hypertrophy. This results in enlargement of the whole muscle, also called hypertrophy. The number of myocytes remains the same.
Existing myocytes can be repaired during regeneration following a severe injury. Satellite cells immediately adjacent to each muscle fiber proliferate and grow, fusing to eachother and existing damaged myofibers. Severe damage also results in fibrosis, or replacement of myofibers with stiff connective tissue, and results in impaired movement. In any case the number of muscle fibers remains the same.
Muscle Hypertrophy.
The sarcoplasmic reticulum are the membranous interconnecting channels and sacs that surround and run parallel to the myofibrils.
The sarcoplasmic reticulum (SR). It releases Ca2+ During contraction, and stores it during relaxation.
The sarcoplasmic reticulum is known for its storage of calcium ions in muscle cells.
in the sarcoplasmic reticulum of a muscle fiber/cell.
In the sarcoplasmic reticulum (smooth er).
The sarcoplasmic reticulum is a special type of smooth endoplasmic reticulum. It releases calcium ions during muscle contraction and absorbs them during relaxation.
The Ca2+ ion concentration of the sarcoplasmic reticulum will be greater in a resting muscle
Sarcoplasmic reticulum (SR) .
Calcim
Sarcoplasmic reticulum
sarcoplasmic reticulum
sarcoplasmic reticulum