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单词 sarcolemma
例句 sarcolemma
Figure 16.18 A skeletal muscle fiber is surrounded by a plasma membrane called the sarcolemma, with a cytoplasm called the sarcoplasm. Concepts of Biology 2013-04-25T00:00:00Z
Explain the effect of a large dose of extracellular K+ on the transmission of the action potential in the sarcolemma. Biology for AP Courses 2022-06-09T00:00:00Z
Cellular damage to muscle fibers that occurs after intense exercise includes damage to the sarcolemma and myofibrils. Anatomy and Physiology 2013-06-19T00:00:00Z
In the first variety the transverse stri� disappear and the sarcolemma appears filled with finely granular matter. A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases 2012-03-17T02:00:54.097Z
By this time the parasite has greatly distended the muscle-fibre in which it has hitherto lain, absorbing, with its growth, practically all the contractile-substance, until it is surrounded only by the sarcolemma and sarcoplasm. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" 2011-02-06T03:00:53.093Z
Within the sarcolemma are minute fibrils and a semiliquid substance, called the sarcoplasm. Physiology and Hygiene for Secondary Schools
The sarcolemma is the site of action potential conduction, which triggers muscle contraction. Biology for AP Courses 2022-06-09T00:00:00Z
The membrane of the cell is the sarcolemma; the cytoplasm of the cell is the sarcoplasm. Anatomy and Physiology 2013-06-19T00:00:00Z
When recovery takes place the affected fibre is believed to be regenerated by a cell-growth within the sarcolemma. A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases 2012-03-17T02:00:54.097Z
She has muscles, not flabby, slender ribbons of empty sarcolemma. Modern Eloquence: Vol III, After-Dinner Speeches P-Z
Each cell has a well-defined nucleus, but the sarcolemma is absent. Physiology and Hygiene for Secondary Schools
Figure 29.34 A skeletal muscle cell is surrounded by a plasma membrane called the sarcolemma with a cytoplasm called the sarcoplasm. Biology for AP Courses 2022-06-09T00:00:00Z
Contraction in each cardiac muscle fiber is triggered by Ca++ ions in a similar manner as skeletal muscle, but here the Ca++ ions come from SR and through voltage-gated calcium channels in the sarcolemma. Anatomy and Physiology 2013-06-19T00:00:00Z
In the extreme atrophy of dry beriberi I have not unfrequently found many of the sarcolemma sheaths completely emptied of their contents. A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases 2012-03-17T02:00:54.097Z
Each fiber is enclosed within a delicate, transparent sheath, known as the sarcolemma. A Practical Physiology
The striations, sarcolemma, and sometimes the nuclei and nerve plates, may be distinguished in such a preparation. Physiology and Hygiene for Secondary Schools
The area of the sarcolemma on the muscle fiber that interacts with the neuron is called the motor end plate. Biology for AP Courses 2022-06-09T00:00:00Z
Figure 10.4 Muscle Fiber A skeletal muscle fiber is surrounded by a plasma membrane called the sarcolemma, which contains sarcoplasm, the cytoplasm of muscle cells. Anatomy and Physiology 2013-06-19T00:00:00Z
Moreover, the muscle fibers of the heart are peculiar in that they are destitute of sarcolemma, the naked muscle fibers directly touching each other. Hygienic Physiology : with Special Reference to the Use of Alcoholic Drinks and Narcotics
The fibrillæ, then, are bound together in a bundle to form a fiber, which is enveloped in its own sheath, the sarcolemma. A Practical Physiology
At each end the cell tapers to a point from which the sarcolemma appears to continue as a fine thread, and this, by attaching itself to the inclosing sheath, holds the cell in place. Physiology and Hygiene for Secondary Schools
The plasma membrane of a skeletal muscle fiber is called the sarcolemma. Biology for AP Courses 2022-06-09T00:00:00Z
The motor end-plate is the location of the ACh-receptors in the muscle fiber sarcolemma. Anatomy and Physiology 2013-06-19T00:00:00Z
In a smooth muscle fiber, external Ca++ ions passing through opened calcium channels in the sarcolemma, and additional Ca++ released from SR, bind to calmodulin. Anatomy and Physiology 2013-06-19T00:00:00Z
They have no sarcolemma, stripes, or cross markings like those of the voluntary muscles. A Practical Physiology
The sarcomere itself is bundled within the myofibril that runs the entire length of the muscle fiber and attaches to the sarcolemma at its end. Anatomy and Physiology 2013-06-19T00:00:00Z
The motor end plate possesses junctional folds—folds in the sarcolemma that create a large surface area for the neurotransmitter to bind to receptors. Biology for AP Courses 2022-06-09T00:00:00Z
Muscle contraction usually stops when signaling from the motor neuron ends, which repolarizes the sarcolemma and T- tubules, and closes the voltage-gated calcium channels in the SR. Anatomy and Physiology 2013-06-19T00:00:00Z
The ACh molecules diffuse across a minute space called the synaptic cleft and bind to ACh receptors located within the motor end-plate of the sarcolemma on the other side of the synapse. Anatomy and Physiology 2013-06-19T00:00:00Z
Propagation of an action potential along the sarcolemma is the excitation portion of excitation-contraction coupling. Anatomy and Physiology 2013-06-19T00:00:00Z
During the latent period, the action potential is being propagated along the sarcolemma. Anatomy and Physiology 2013-06-19T00:00:00Z
The depolarization then spreads along the sarcolemma, creating an action potential as sodium channels adjacent to the initial depolarization site sense the change in voltage and open. Biology for AP Courses 2022-06-09T00:00:00Z
Long periods of sustained exercise may damage the SR and the sarcolemma, resulting in impaired Ca++ regulation. Anatomy and Physiology 2013-06-19T00:00:00Z
The plateau is produced by Ca++ entry though voltage-gated calcium channels in the sarcolemma of cardiac muscle fibers. Anatomy and Physiology 2013-06-19T00:00:00Z
A dense body is analogous to the Z-discs of skeletal and cardiac muscle fibers and is fastened to the sarcolemma. Anatomy and Physiology 2013-06-19T00:00:00Z
When the thin filaments slide past the thick filaments, they pull on the dense bodies, structures tethered to the sarcolemma, which then pull on the intermediate filaments networks throughout the sarcoplasm. Anatomy and Physiology 2013-06-19T00:00:00Z
These cells are located outside the sarcolemma and are stimulated to grow and fuse with muscle cells by growth factors that are released by muscle fibers under certain forms of stress. Anatomy and Physiology 2013-06-19T00:00:00Z
The first phase is the latent period, during which the action potential is being propagated along the sarcolemma and Ca++ ions are released from the SR. Anatomy and Physiology 2013-06-19T00:00:00Z
This is a specialized synaptic structure at which multiple axon terminals synapse with the muscle fiber sarcolemma. Anatomy and Physiology 2013-06-19T00:00:00Z
The synaptic end bulbs of the motor neurons secrete acetylcholine, which binds to receptors on the sarcolemma. Anatomy and Physiology 2013-06-19T00:00:00Z
The binding of acetylcholine opens ligand-gated ion channels, increasing the movement of cations across the sarcolemma. Anatomy and Physiology 2013-06-19T00:00:00Z
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