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The sarcolemma of smooth muscle cells has small invaginations called... - caveolae. - transverse tubules. - terminal cisternae. - dense bodies.
The sarcolemma of smooth muscle cells has small invaginations called Multiple Choice caveolae. transverse tubules. terminal cisternae. dense bodies.
The component of a muscle fiber that quickly transports a muscle impulse from the sarcolemma throughout the entire muscle fiber is called the transverse tubule (T-tubule). The sarcolemma of smooth muscle cells has small invaginations called
n. The thin, transparent, extensible membrane covering every striated muscle fiber. Source: modified by Maria Victoria Gonzaga, BiologyOnline.com, from the work of OpenStax, CC BY-SA 4.0.. Table of Contents. Sarcolemma Definition. What is the sarcolemma? It is the thin, transparent, extensible plasma membrane of the muscle cell.
The sarcolemma of myocytes contains numerous invaginations (pits) called transverse tubules which are usually perpendicular to the length of the myocyte. Transverse tubules play an important role in supplying the myocyte with Ca + ions, which are key for muscle contraction.
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.
It is composed of a cell, or plasma, membrane which presents an extracellular matrix of collagen fibrils and polysaccharides that make contact with the basal lamina. The sarcolemma also contains tunnel-like invaginations into the sarcoplasm, which are known as transverse tubules (Standring, 2016).
Transverse tubules (T-tubules) are invaginations of the sarcolemma that penetrate deep into the muscle fiber, allowing for rapid transmission of action potentials from the cell surface to the interior of the muscle fiber.
The sarcolemma of myocytes contains numerous invaginations (pits) called transverse tubules which are usually perpendicular to the length of the myocyte. Transverse tubules play an important role in supplying the myocyte with Ca + ions, which are key for muscle contraction.
Specific to striated muscle cells, t-tubules are invaginations of the sarcolemma, penetrating into the intracellular space of myocytes. These tubular invaginations form a complex network with transverse tubules that are interconnected within the cytoplasm by longitudinal tubules.