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anatomy448

anatomy flash cards

QuestionAnswer
ability for the muscle to shorten with force contractility
capacity of skeletal muscle to respond to stimuli excitability
ability to be stretched extensibility
ability to snap back into place after being stetched elasticity
near the center of the cell synapse
single motor neuron motor unit
muscles regulate what ? body temperature
each skeletal muscle is surrounded by connective tissue called ? epimysium
what is another connective tissue surrounding the epimysium? Fascia
what is numerous bundles? muscle fasiculi
fascicles are surrounded by what loose connective tissue ? perimysium
another name for muscles fibers
each fiber is surrounded by a muscle tissue sheath called a ? endomysium
a threadlike structure that extends from one fiber to another myofibrils
2 kinds of protein fibers actin, myosin
thin myofilaments actin myofiliments
thick myofiliments myosin
highly ordered unis are ? sarcomeres
what disk does the sarcomere extend from ? z line (disk)
What has actin in it ? I band
what has myosin in it? A band
light area inside the center of a sarcomere H zone
charge difference across the membrane resting membrane potential
brief reversal back charge action potential
nerve cells that carry on potentials motor neurons
each branch connected form a neromuscular junction (synapse)
enlarged nerve terminal presynaptic terminal
the space in between a presynaptic terminal synaptic cleft
each presynaptic terminal contains synaptic vesicles
nuerotransmitter acetylcholine
Created by: arondotson