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34 Cards in this Set
- Front
- Back
- 3rd side (hint)
types of muscle tissue
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-skeletal
-smooth -cardiac |
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functions of muscle tissue
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-motion
-stabalizing body and regulating organ volume -heat production/thermogensis -movement of substances in the body |
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excitability
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ability to respond to certain stimuli by producing electical signals called nerve impulses
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contractility
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ability of the muscle to shorten and thicken
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extensibility
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ability of the muscle to stetch or extend with out damage
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elasticity
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ability of the muscle tissue to return to original state or shape
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conductivity
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ability of muscle or nerve cells to conduct or pass through an impulse
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loose conective tissue (hypodermis) functions
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-stores water and fat
-insulation -mechanical protection -pathway for nerves |
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deep connective tissue (deep fascia) functions
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-holds muscle together
-allows free movement of muscle -carries neerves and blood Vessels -fills in space between muscles -surrounds organs |
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types of deep CT
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-epimysium
-perimysium -endomysium -tendon -aponeurosis -tendon sheath |
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motor unit
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a motor neuron, axon, axon branches, and all skeletal muscle fibers
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neuromuscular junction
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the region where the nerve and muscle communicate
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sarcomere
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the functional unit of the muscle cell
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muscle contraction specifics
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nerve impulse-axon-axon terminal-synaptic end bulb-synaptic cleft (gap)-motor end plate-T tubules-the release of calcuim to bind with troponin to contract muscle
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synaptic end bulb
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hold acetylcholine and relaeses it when the impulse tells it to
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motor end plate
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part of muscle that has receptors that pick up acetylcholine that opens sodium channels allowing sodium to rush in making the cell more positive
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T Tubules
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tells the sacroplasmic reticulum to release calcium
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hypotonia
hypertonia |
-decrease or lost muscle tone
-increase in muscle tone |
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flaccid
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loose, flabby, no muscle tone
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spasticity
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hypertonia with increase muscle tone (cramp)
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hypertrophy
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excessive enlargement
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anaerobic process
aerobic process |
-without oxygen and not producing enough ATP
-with oxygen and working out |
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myalgia
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muscle pain
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isotonic contractions
isometric contractions |
-muscle shortens, tension stays the same
-when tension on a muscle increases but muscle length stays the same |
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agonist
antagonist fixator synergist |
-primary mover (bicep)
-opposing muscle that relaxes (tricep) -stabalizes and holds the proximal joint (deltoid) -what assists the agonist (brachial radialus) |
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skeletal muscle tissue
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-attaches to bone, Striated and Voluntary
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smooth muscle tissue
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locates in organs and vessels, non-striated and involuntary
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cariac muscle tissue
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forms most of the heart, striated, and involuntary
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epimysium
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-outermost layer that
muscle, and attaches to bone, |
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perimysium
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intermediate layer that surrounds fasicles of muscle fiber
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endomyseium
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innner most layer that surrounds each individual muscle fiber
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tendon
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attaches muscle to bone, dense CT
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apneurosis
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sheet-like tendon, extension of muscle and attaches bone, skin, and muscle t
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tendon sheath
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contains a film of synovial fluid to reduce friction
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