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18 Cards in this Set
- Front
- Back
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3 classes of muscle according to location
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skeletal, visceral, cardiac
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is skeletal muscle always connected to bone?
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no, facial muscles
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what are visceral muscles controlled by?
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autonomic nervous system
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2 classes of muscle according to microscopic appearance
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striated-includes skeletal and cardiac muscles. controlled by both autonomic and somatic nsystems
smooth-controlled by autonomic nervous system |
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2 classes of muscle according to control type
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voluntary-controlled by somatic
involuntary-cardiac and smooth. controlled by autonomic |
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fibrous connective tissue that binds adjacent muscles
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fascia
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3 types of fascia
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epimysium-surrounds entire muscle
perimysium-surround individual fascicles of muscle endomysium-surrounds individual muscle fibers |
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fibrous connective tissue that connects muscle to bone
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tendon
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what is the muscle cell membrane?
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sarcolemma
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what is the cytoplasm of a muscle fiber?
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sarcoplasm
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what is a triad
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a pair of terminal cisternae plus t-tubule
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what is A band?
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length of myosin plus actin overlap
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what is I band?
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length of actin not overlapping with myosin
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What is the Z line?
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perpendicular of actin
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What is H zone?
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myosin without actin overlap
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what measures a sarcomere?
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distance between two Z lines
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which band stay the same and which change when a muscle contracts?
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A stays same while I and H narrow
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example of a neurotransmitter
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acetylcholine
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