Muscle Tissues Flashcards
identify
Parts of three muscle fibers are separated by very small amounts of (?)
[skeletal muscle]
endomysium
identify
delicate connective tissue that surrounds muscle fiber
[skeletal muscle]
endomysium
identify
long, cylindrical filament bundles in the sarcoplasm of myocytes
[skeletal muscle]
myofibril
identify
it is a thick dense connective tissue that surrounds the entire skeletal muscle
[skeletal muscle]
epimysium
identify
in smooth muscle, there is much collagen in the branching (?), but very little evidence of (?) is apparent
[smooth muscle]
- perimysium
- endomysium
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- diameter: 10-100 μm
- length: 1 mm-30 cm
[muscle tissues|size]
skeletal muscle
identify
The repeating arrangement of the basic contractile unit of the muscle tissues, that produces these striations is called (?)
sarcomere
identify
(?) are striated, but they consist of individual cylindrical cells, each containing one (or two) central nuclei and linked by adherent and gap junctions at prominent Intercalated discs
[muscle tissues]
cardiac muscle fibers
identify
striated, voluntary control
[muscle tissues]
skeletal muscle cells
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specialized for slow, steady contraction and is controlled by a variety of involuntary mechanisms
[muscle tissues]
smooth muscle
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it surrounds individual muscle
[skeletal muscle]
endomysium
identify
elongated, multinuclear cells composed of several myofibrils
[skeletal muscle]
muscle fiber
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another term/name for smooth muscle
visceral muscle
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In a cross section of smooth muscle in the wall of the small intestine, cells of the (?) are cut lengthwise and cells of the (?) are cut transversely
[smooth muscle]
- inner circular layer
- outer longitudinal layer
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six (6) organization of a Skeletal Muscle
- epimysium
- fascicle
- perimysium
- muscle fiber
- endomysium
- myofibril
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composed of cell differentiated for optimal use of the universal cell property termed contractility
muscle tissues
identify
- diameter: 10-20 μm
- length: 50-100 μm
[muscle tissues|size]
cardiac muscle
identify
- Long cylindrical cells
- Multinucleated cells with many peripheral nuclei
- Striated muscle - exhibit cross-striations
- Voluntary control - innervated by the somatic nervous system (motor neurons)
- Respond quickly to stimuli
- Satellite cells - skeletal muscle stem cells
[muscle tissues]
skeletal muscle
identify
- diameter: 3-15 μm
- length: 20-200 μm
[muscle tissues|size]
smooth muscle
identify
it is found in the heart
[muscle tissues]
cardiac muscle
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in the skelatal muscle, (?) are found against the sarcolemma
[skeletal muscle]
muscle nuclei
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thin but dense connective tissue that wraps fascicles
[skeletal muscle]
perimysium
identify
three (3) types of muscle tissue
- skeletal muscle cells
- cardiac muscle cells
- smooth muscle cells
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Skeletal and cardiac muscle cells are called (?) because they show an alternating series of bands
striated
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Section of smooth muscle in bladder shows fibers in (?) and (?) with the same fascicle
[smooth muscle]
- cross section
- longtidunal section
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nonstriated, involuntary control
[muscle tissues]
smooth muscle cells
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Fibers of smooth muscle are (?), (?), and (?) cells, each of which is enclosed by a thin (?) and a fine network of (?), the endomysium
[smooth muscle]
- elongated
- tapering
- non-striated
- basal lamina
- reticular fibers
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Three types of muscle tissue are recognized based on their (?), (?), and (?)
- structure
- function
- location
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muscle tissues that are called “striated” because they show an altering series of bands
- skeletal muscle cells
- cardiac muscle cells
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in skeletal muscle, one (?) is shown
[skeletal muscle]
fibroblast nucleus
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it surrounds the entire muscle
[skeletal muscle]
epimysium
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bundle of skeletal muscle that is surrounded by perimysium
[skeletal muscle]
fascicle
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connected to bone (or cartilage) by way of ligaments and produce all movements of parts of the body
[muscle tissues]
skeletal muscle
identify
in skeletal muscle, along each fiber, thousands of dark staining (?) alternate with lighter (?)
[skeletal muscle]
- A bands
- I bands
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it encloses a group of muscle fibers comprising a fascicle
[skeletal muscle]
perimysium
identify
striated, involuntary control
[muscle tissues]
cardiac muscle cells
idenitfy
Longitudinal sections of cardiac muscle at the light microscope level show (?) in the center of the muscle fibers and widely spaced (?) that cross the fibers
[cardiac muscle]
- nuclei
- intercalated discs
