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skeletal muscle

QuestionAnswer
1st class lever system R-F-E. seesaw. occipital condyles.
2nd class lever system F-R-E. wheelbarrow. foot flexion.
3rd class system F-E-R. shovel. biceps.
mnemonic for skeletal heirarchy every monkey prefers friends eating m& m's on monday
every monkey prefers friends eating m&m's on mondays epimysium, muscle organ, perimysium, fasicle, endomysium, endomysium, muscle fibers, myofibrils, myofilaments
define Sarcolema plasma membrane of muscle fiber
fxn of neuromuscular jxn where motor neurons synapse with muscle fibers. step 1 of muscle contraction. has 3 parts.
3 parts of neuromuscular jxn axon terminal (synaptic knob), synaptic cleft, motor end plate
axon terminal (synaptic knob) releases neurotransmitter, AcH
CONNECTIVE TISSUE SHEATHS EPIMYSIUM, PERIMYSIUM, ENDOMYSIUM
EPIMYSIUM surrounds whole muscle, made of WFCT
PERIMYSIUM surrounds the fascicle, made of areolar CT/WFCT
ENDOMYSIUM surrounds individual muscle fibers, made of areolar CT
fasicle bundle of muscle fibers: surrounded by perimysium, contains nuclei, endomysium and bundles of muscle fiber
muscle fibers is a muscle cell: surrounded by endomysium, contains sarcoplasm, myofibrils, nuclei and satellite cells
muscle organ muscle made up of various tissues, including skeletal, nerve, connective, vascular
myofibril elongated contractile threads found in striated muscle cells
myofilaments filaments of myofibrils constructed from proteins
sarcoplasm "cytoplasm" in muscle fiber
sarcoplasmic reticulum made of smooth ER, stores and releases calcium
motor end plate folded sarcolema, site of Ach receptors
t-tubule carries signal to sarcoplasmic reticulum, made od sarcolema
Created by: sometimeslacey
 

 



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