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14 Cards in this Set
- Front
- Back
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Skeletal
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Attached to bones
Single, Very Long, Cylindrical Voluntary slow to Fast |
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Cardiac
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Walls of the Heart
Branching chains of cells Involuntary; Hearts has a pacemaker;also nervous system controls; hormones slow |
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Smooth
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Typically in walls of hollow visceral organs(other than hearts)
Involuntary; nervous system controls; hormones, chemicals, stretch very slow |
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Muscle Functions
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-Produce movement-enable us to respnd to environment
-Mantain Posture -Stabilizing joints-muscle tendons that attach muscles to bones cross join reinforce bone position -generates heat |
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Contractibilty
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ability to shorten with adaquate stimulus
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Morot Unit
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One neuron and all the muscles cells it stimulates
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Neuromuscular junction
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where muscles meet
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Synaptic Cleft
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gap between sacrolemal an axiolde teminals
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Action Potential
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electric current generates as a result of ca+ ions flooding the sacomena
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graded responses
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"all or none"
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muscle twitches
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stimulus to muscle followed by contraction and muscle relaxes
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summation
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frequent stimuli w/o time begin to compltely relax
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incomplete tetanus
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more complete fusion of twitches
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complete tetanus
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smooth continuous contraction due to rapid rate of stimulation
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