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Definition
| Composed of fibers that contract, causing movement |
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| Muscle responsible for voluntary movement, 40% of body's weight, contracts 100% always |
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| Involuntary muscle found in walls of hollow organs, eyes, skin, and glands, controlled by Beta 2 |
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| Unique to heart muscle, when one cell beats they all start beating together |
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| The number of muscle cells in a muscle remains ____________ throughout life |
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| Muscle cells release calcium and contract, temporary post mortem |
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Definition
| Contain 2 types of myofilaments(actin myofilaments and myosin myofilaments) |
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| Myofibrils that are active in muscular contractions, cellular movement, and maintenance of cell shape |
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Definition
| Fibrous globulins of muscle that react with actin to form actomyosin |
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| Junction between a motor neuron and a muscle fiber |
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| Substance theat transmits nerve impulses across a synapse |
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Definition
| Help to relax muscles, lower BP, lower HR, and dialates blood vessels |
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Definition
| Stimulates movement of vesicles and ultimately muscles |
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Term
| Sliding filament mechanism |
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Definition
| Movement of myofilaments past each other during muscle contraction |
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Definition
| Created by resting muscles breaking down fatty acids, used to build energy reserves |
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| Process by which ATP is generated after muscles are exerted and oxygen cannot be supplied fast enough |
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| Pigment containing iron found in red blood cells, carries 97% of oxygen in the body |
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Definition
| Pigment containing iron, similar to hemoglobin, found in muscle fibers, toxic to kidneys |
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| Stems from trauma of muscle wasting diseases, leads to jaundice(i.e. crush injuries) |
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| Smooth muscle cells are ______________ than skeletal muscle cells |
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| Hormone that stimulates contractions of the uterine smooth muscle |
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| Striated muscle with cells containing only one nucleus |
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Definition
| Branching fibers between cells and protein-lined ion channels in cardiac muscle that allow action potentials to pass from cell to cell |
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Definition
| Speed/velocity of an impulse to contractility |
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Definition
| Strength of contractility |
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Definition
| A cell at rest, waiting to react to a stimulus |
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Definition
| Happens once a cell is triggered, channels open up and sodium rushes in |
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Definition
| Unique ability of cardiac muscle to generate it's own electrical activity |
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Definition
| Recovery phase, when sodium leaves the cell |
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Definition
| Muscles that work together to accomplish a particular movement(accessory muscles) |
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| Muscles working in opposition to other muscles |
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| Muscles that stabilize the origin of the prime mover |
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Definition
| With deep muscle punctures there is always the risk of ________________ |
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