Cell membrane of a muscle cell.- Sarcolemma
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Also known as a myocyte when referring to either a cardiac muscle cell , or a smooth muscle cell as these are both small cells.
The cytoplasm in a muscle cell is termed the sarcoplasm; the smooth endoplasmic reticulum of a muscle cell is termed the sarcoplasmic reticulum; and the cell membrane in a muscle cell is termed the sarcolemma.
Membrane-bound structure found within muscle cells that is similar to the smooth endoplasmic reticulum in other cells.
Cardiac and skeletal muscle cells contain structures called transverse tubules (T-tubules), which are extensions of the cell membrane that travel into the centre of the cell.
T-tubules (transverse tubules) are extensions of the cell membrane that penetrate into the centre of skeletal and cardiac muscle cells.
Cytoplasm of a muscle cell.
It has a Golgi apparatus near the nucleus, mitochondria just inside the cell membrane (sarcolemma), and a smooth endoplasmic reticulum (specialized for muscle function and called the sarcoplasmic reticulum).
Action potential occurs when the membrane potential of a specific cell location rapidly rises and falls.
In such cases, the released neurotransmitter is acetylcholine, which binds to the acetylcholine receptor, an integral membrane protein in the membrane (the sarcolemma) of the muscle fiber.
Autoregulation method in which myocardial contractility increases with afterload.
Sustained myocardial stretch activates tension-dependent Na+/H+ exchangers, bringing Na+ ions into the sarcolemma.
Protein that in humans is encoded by the SPTAN1 gene.
Alpha II-spectrin is expressed in a variety of tissues, and is highly expressed in cardiac muscle at Z-disc structures, costameres and at the sarcolemma membrane.
Group of disorders caused by mitochondrial dysfunction.
"Ragged Red Fibers" are clumps of diseased mitochondria that accumulate in the subsarcolemmal region of the muscle fiber and appear when muscle is stained with modified Gömöri trichrome stain
Cardiac muscle (heart muscle)
Each muscle fiber contains sarcolemma, sarcoplasm, and sarcoplasmic reticulum.
Goose that breeds in Central Asia in colonies of thousands near mountain lakes and winters in South Asia, as far south as peninsular India.
Compared to lowland birds, mitochondria (the main site of oxygen consumption) in the flight muscle of bar-headed geese are significantly closer to the sarcolemma, decreasing the intracellular diffusion distance of oxygen from the capillaries to the mitochondria.