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23 Cards in this Set
- Front
- Back
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atrophy
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loss of muscle mass
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perimysium
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dense irregular ct sheath surrounding muscle
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fascicle
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bundle of muscle fibers or cells
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periostem
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dense irregular ct tissue
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epimysium
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sheath of dense irregular ct
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sarcolemma
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muscle cell membrane
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sarcoplasmic reticulum
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stores calcium
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transverse tubules (t-tubule)
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transfers stimulus to muscle cells
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sarcomere
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one is Z to Z
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which zone disappesrs upon full contraction
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H zone
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what band is the length of the myocin filament
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A band
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what happens to the muscle filaments? shorten, lengthen or overlap
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overlap
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what is excitation contraction coupling?
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the physiological process of converting an electrical stimulus to a mechanical response.
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what surrounds actin?
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tropomyosin
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___________ holds tropomyosin in place.
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troponin
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_____ binds the crossbridge.
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ATP
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ADP+P is released from the__________…
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crossbridge
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parallel fibers
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muscle fibers in the same direction all next to each other
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fusiform
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spindle like shaped muscle fibers
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circular
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appear circular in shape and are normally shincter muscles which surround an opening such as the mouth
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convergant
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muscle where the origin is wider than the point of insertion
ie pectoral major, traps |
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penate
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have a lg number of muscle fibers per unit, very strong but tire easily
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isometric contraction
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muscle generates tension/force
length remains constant |
