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Transverse+Tubules+(T+Tubules) definitions
| # | Definition | Sets |
|---|---|---|
| 1 | invaginations, or deep indentations, of the sarcolemma into the sarcoplasm of the skeletal muscle cell | 16 sets |
| 2 | small, cylindrical invaginations of the sarcolemma of striated muscle fibers (cells) that conduct muscle action potentials toward the center of the muscle fiber | 10 sets |
| 3 | extensions of the sarcolemma that extend into the cell | 9 sets |
| 4 | narrow tubes that are continuous with the sarcolemma and extend into the sarcoplasm at right angles to the cell surface; filled with extracellular fluid; form passage way through the muscle fiber | 7 sets |
| 5 | infoldings of the plasma membrane of skeletal muscle cells. | 7 sets |
| 6 | they are infoldings of the sarcolemma and retain an opening on the sarcolemma, they are associated with the sarcoplasmic reticulum | 6 sets |
| 7 | a series of tubules that run transversely through the sarcoplasm | 6 sets |
| 8 | tiny, cylindrical invaginations of the sarcolemma of striated muscle fibers that conduct muscle action potentials toward the center of each muscle fiber | 6 sets |
| 9 | extensions of the sarcolemma & serve as a rapid communication system that ensures that every myofibril in the muscle fiber contracts at virtually the same time: extension of the muscle cell plasma membrane: found at junction of a & i bands | 5 sets |
| 10 | narrow tubes that are continous w/ the sarcolemma & extend deep into the sarcoplasm. | 5 sets |
| 11 | run throughout the cell and allow even movement transmit action potential through cell allow entire muscle fiber to contract simultaneously have same properties as sarcolemma | 5 sets |
| 12 | infoldings of the plasma membrane through which the action potential spreads | 5 sets |
| 13 | an extension of the cell membrane that penetrates into the interior of the muscle; the electrical signal runs along this membrane toward the sarcoplasmic reticulum | 5 sets |
| 14 | invaginations of the sarcolemma into the sarcoplasm, which carry the electrical impulse that stimulates contraction into the sarcoplasm | 4 sets |
| 15 | infoldings of the plasma membrane of skeletal muscle cells | 4 sets |
| 16 | deep indentations of the sarcolemma into the sarcoplasm, carry electric impulse that stimulates contraction into sarcoplasm | 4 sets |
| 17 | {these} run transversely through muscle fibers and perpendicularly to the sarcoplasmic reticulum (sr). | 4 sets |
| 18 | tubelike invagination of the sarcolemma that conducts action potentials toward the center of the cylindrical muscle fibers. | 4 sets |
| 19 | invaginations made by the sarcolemma that goes in between the a and i bands to surround the myofibrils. | 3 sets |
| 20 | an infolding of the plasma membrane of skeletal muscle cells | 3 sets |
| 21 | carry the depolarization to the interior of the fiber | 3 sets |
| 22 | connects the sarcolemma to the interior of the cell. muscle action potentials travel through, it excites all parts of the muscle fiber at the same time. | 3 sets |
| 23 | tunnel in from the plasma membrane muscle action potentials travel through the t tubules | 3 sets |
| 24 | involutions of the sarcolemma into the sarcoplasm | 3 sets |
| 25 | network of narrow tubules that extend to the sarcoplasm, stimulate and coordinate muscle contractions | 3 sets |
| 26 | ____ are tiny pockets of the sarcolemma that extend into the muscle cell. these ____ are filled with extracellular fluid and they extend deep into the sarcoplasma at right angles to the cell surface. | 3 sets |
| 27 | ..., tiny, cylindrical invaginations of the sarcolemma of striated muscle fibers that conduct muscle action potentials toward the center of each muscle fiber | 3 sets |
| 28 | tubular infoldings of the sarcolemma which penetrate through the cell and emerge on the other side | 3 sets |
| 29 | extentions of the sarcolemma that extend into the cell | 3 sets |
| 30 | an infolding of the plasma membrane of skeletal muscle cells. | 3 sets |
| 31 | invaginations of sarcolemma, conduct impulses to deepest regions of cell | 3 sets |
| 32 | narrow tubes that are continuous with the sarcolemma and extend into the sarcoplasm at right angles to the cell surface. | 2 sets |
| 33 | extensions of the sarcolemma form a network of tubules | 2 sets |
| 34 | part of plasma membrane inside cell | 2 sets |
| 35 | continuous with sarcolemma | 2 sets |
| 36 | passageway from the sarcoplasmic reticulum | 2 sets |
| 37 | invaginations (deep indentations) that tunnel in from the surface toward the center of each muscle fiber. are open to the outside of the fiber and are filled with interstitial fluid | 2 sets |
| 38 | transmit action potential through cell allow entire muscle fiber to contract simulataneously have same properties as sarcolemma | 2 sets |
| 39 | tubular infoldings of the sarcolemma which penetrate the cell and emerge on the other side | 2 sets |
| 40 | transmit action potential through cell allow entire muscle fiber to contract simultaneously have same properties as sarcolemma | 2 sets |
| 41 | tunnel that carries the signal f/sarcolemma deep into cell | 2 sets |
| 42 | small, cylindrical invaginations of the sarcolemma of striated muscle cells that conduct muscle action potentials toward the center of the muscle fiber. | 2 sets |
| 43 | muscle action potential spreads rapidly into cell interior via __ or ___ ___ | 2 sets |
| 44 | the irregular network of tiny tunnel-like extenions of the sarcolemma which penetrate into the interior of striated (skeletal and cardiac) muscle cells and make intimate contact with the membranes of the terminal cisterns of the sarcoplasmic reticulum | 2 sets |
| 45 | -extensions of the sarcolemma -they tunnel their way throughout the muscle fiber -open to the outside and the are filled with interstitial fluid | 2 sets |
| 46 | small, cylindrical invaginations of the sarcolemma of striated muscle fibers (cells) that conduct muscle action potentials toward the center of the muscle fiber. | 2 sets |
| 47 | invaginations of the sarcolemma that go in toward the muscle fiber conduct impulses that travel from a nerve to the sarcolemma towards the muscle fibers ensures that each myofibril contracts at the same time | 2 sets |
| 48 | the irregular network of tiny tunnel-like extensions of the sarcolemma which penetrate into the interior of striated (skeletal and cardiac) muscle cells and make intimate contact with the membranes of the terminal cisterns of the sarcoplasmic reticulum; when the striated muscle cell is stimulated by neurotransmitter and depolarization occurs, the wave of depolarization is propagated along these membrane passageways and the depolarization is transferred to the membrane of the sarcoplasmic reticulum causing its depolarization and the opening of the ca2+ release channels. | 2 sets |
| 49 | tubes from sarcolemma extending into sarcoplasm, transmembrane potential changes travel along these to the cell interior | 2 sets |
| 50 | transmit action potential through cell, allow entire muscle fiber to contract simultaneously, have same properties as sarcolemma | 2 sets |
| 51 | narrow tubes that are continuous with the sarcolemma and extend into the sarcoplasm | 2 sets |
| 52 | a network of narrow tubules that form passageways through the muscle fiber. | 2 sets |
| 53 | help stimulate and coordinate muscle contractions | 2 sets |
| 54 | small invaginations of the sarcolemma; forms tunnels into the center of the cell filled w/ interstitial fluid | 2 sets |
| 55 | invaginations of sarcolemma conduct impulses to deepest regions of cell | 2 sets |
| 56 | invaginations of the sarcolemma that tunnel in from the surface toward the center of each muscle fiber | 2 sets |
| 57 | are an invagination of the muscle cell's sarcolemma | 2 sets |
| 58 | deep invagination of the sarcolemma, which is the plasma membrane, only found in skeletal and cardiac muscle cells. these invaginations allow depolarization of the membrane to quickly penetrate to the interior of the cell | 2 sets |
| 59 | deep invaginations of the sarcolemma that extend into the sarcoplasm | 2 sets |
| 60 | infoldings of the sarcolemma extending from one side to the other, convey electrical signals from the surface to the interior | 2 sets |
| 61 | bring action potentials into the interior of the skeletal muscle fibers | 2 sets |
| 62 | parts of the sarcolemma that penetrate into the cell | 2 sets |
| 63 | tunnel-like infoldings in the sarcolemma that penetrate the cell and carry electric current to the interior of the cell | 2 sets |
| 64 | -transmit action potential through cell -allow entire muscle fiber to contract simultaneously -have same properties as sarcolemma | 2 sets |
| 65 | at several points the cell membrane penetrates deep into the interior of the muscle fiber. cuts though | 1 set |
| 66 | -thousand of tiny invaginations of the sarcolemma -tunnel in from the surface of toward the center of each muscle fiber. -filled w/ interstitial fluid -muscle actions and potentials travel along the sarcolemma and through t tubules. | 1 set |
| 67 | transmit action potential through cell; allow entire muscle fiber to contract simultaneously; has the same properties as sarcolemma | 1 set |
| 68 | tubules that carry action potential deep into the muscle are actually internal extensions of the muscle cell membrane | 1 set |
| 69 | deep invaginations of the sarcolemma that spread electrical excitation | 1 set |
| 70 | infoldings of the plasma membrane of the skeletal muscle cells | 1 set |
| 71 | two extensions of sarcolemna that go deep into interior of the cell to distribute signal to contract quickly (p 297) | 1 set |
| 72 | action potentials travel to the interior of the muscle fiber along ______ | 1 set |
| 73 | inward extensions of the sarcolemma into the interior of the cell | 1 set |
| 74 | help stimulate and coordinate muscle contractions through electrical impulses | 1 set |
| 75 | cell membrane penetrates deep into teh interior of the muscle fiber | 1 set |
| 76 | propagate ach along the muscle fiber. | 1 set |
| 77 | invaginations of the muscle fiber membrane, associated with the sacroplasmic reticulum | 1 set |
| 78 | surround actin and myosin at the a-i junction | 1 set |
| 79 | __ transmit action potential through cell | 1 set |
| 80 | __ allow entire muscle fiber to contract simultaneously | 1 set |
| 81 | __ have the same properties as sarcolemma | 1 set |
| 82 | are invaginations of the sarcolemma into the centre of the cell filled with extracellular fluid carry muscle action potentials down into cell. | 1 set |
| 83 | radial invaginations of the sarcolemma. opens to the extracellular space. has an excitable membrane. | 1 set |
| 84 | small, cylindrical invaginations of the scrolemma of striated muscle fibers (cells) that conduct muscle action potentials toward the center of the muscle fiber | 1 set |
| 85 | stimulate and coordinate muscle contractions, network of tubules extend into sarcoplasm. signal from sarcolemma->sarcoplasm->t-tubules | 1 set |
| 86 | where the cell membrane penetates deep into the interior of the musclef ibers | 1 set |
| 87 | excitation is carried into the muscle fiber by | 1 set |
| 88 | tunnel that starts at surface and goes to the center of each fiber | 1 set |
| 89 | a continuation of the sarcolemma, provide a means by which the deep myofibrils can be activated by action potentials | 1 set |
| 90 | continous w/ sarcolemma, extend into sarcoplasm right angles to sarcolemma | 1 set |
| 91 | deep invaginations of the sarcolemma(into the sarcoplasm) which allow electical impulses to quickly travel to the interior of the cell | 1 set |
| 92 | tiny invaginations of the sarcolemma that tunnel in from the surface toward the center of each muscle fiber | 1 set |
| 93 | what do muscle ap travel through | 1 set |
| 94 | tunnel in from the plasma membrane, muscle action potentials travel through the t tubules. | 1 set |
| 95 | descent into the sarcoplasm and are close to the sarcoplasmic reticulum | 1 set |
| 96 | tunnel in from the plasma membrane. | 1 set |
| 97 | tunnel in from the plasma membrane, muscle action potentials(ap) travel through the t tubules | 1 set |
| 98 | tunnel in from the plasma membrane | 1 set |
| 99 | these tunnel in from the plasma membrane | 1 set |
| 100 | narrow tubes that are continuous with the sarcolemma, passing through muscle fiber. deliver action potential. | 1 set |