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搜索智能精选题目Under a microscope , muscle cells appear to be ___ .A.textured like woodB.colored like woodC.smooth and redD.short and thick答案A
Many of the striated muscle contractile proteins have homologous isoforms that are expressed in smooth muscle tissue. There is a smooth muscle-specific myosin heavy chain gene and the genes for the light chains of smooth muscle myosin differ from those of skeletal muscles. In place of well-define...
smooth muscle n. Muscle tissue that contracts without conscious control, having the form of thin layers or sheets made up of spindle-shaped, unstriated cells with single nuclei and found in the walls of the internal organs, such as the stomach, intestine, bladder, and blood vessels, excluding...
Smooth muscle cells also proliferate and migrate upon the activation of chemical and mechanical factors, which modulates tissue homeostasis and development. Unfortunately, uncontrolled vascular smooth muscle contractility results in the development of hypertension. Aberrant airway smooth muscle reactivity leads ...
Mark, J. S. T. ( 1956 ). An electron microscope study of uterine smooth muscle . Anat. Rec. , 125 , 473 – 485 .Mark, J. S. T. , An electron microscope study of smooth muscle . Anat. Rec. , 125 , 473 – 493 ( 1956 ).An electron microscope study of smooth muscle - MARK...
We next investigated the impact of AMPK-α1/α2 deletion on voltage-gated potassium (KV) currents in acutely isolated pulmonary arterial smooth muscle cells, because reduced activity and/or expression of KV1.5 has been identified as a hallmark of persistent pulmonary hypertension in neonates52,53an...
When viewed under the microscope, skeletal muscle cells appear to have a striped, or striated, pattern of light and dark regions. These stripes are caused by the regular arrangement of actin and myosin proteins within the cells into structures known as myofibrils. Myofibrils are responsible for ...
it appears homogenous. Smooth muscle cytoplasm contains large amounts of actin and myosin. Actin and myosin act as the main proteins involved in muscle contraction. Actin filaments attach to dense bodies spread throughout the cell. Dense bodies can be observed under an electron microscope and appea...
The preload was set at 0.3–0.8 g based on the tissue size. Isolation of single ASM cells. Single ASM cells were isolated from BALB/c mouse tracheal smooth muscle as previously described with minor modifications24,28. Briefly, after the mice were euthanized, the tracheae were ...