Stack #182174
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| heirarchical organization of skel muscl, and membrane surrounding each level | sarcomere -> muscle fibril -> muscle fiber or cell (endomysium) -> muscle fascicle
(perimysium) -> muscle organ (epimysium)
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| m line attached to actin or myosin | myosin
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| z line attached to actin or myosin | actin
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| a zone is | entire myosin its length doesn't change during contraction
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| h zone is | region containing only myosin
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| i zone is | region containing only actin
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| which band's length constant during contract | a zone
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| motor unit | all muscle cells controlled by single motor neuron
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| white fiber known as | fast fiber
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| fast fiber known as | white fiber
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| slow fiber known as | red fiber
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| example of convergent muscle | pec major
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| distinguishing feature of pennate muscle | tendons run through the muscle
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| different pennate muscles and examples of each | 1.unipennate - extensor digitorium
2.bipennate - retus femoris
3.multipennate - deltoid
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| first class lever example, location of weight(w) fulcrum (f) and force(F) | head neck
wfF
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| second class lever example, location of weight(w) fulcrum (f) and force(F) | tip toe
fwF
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| third class lever example, location of weight(w) fulcrum (f) and force(F) | flex brachium
wFf
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| muscles responsible for closing jaw for massication | masseter, temporalis, medial pterygoid
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| muscles responsible for open jaw | lateral pterygoid
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| muscle for suction | buccinator
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| __ flexes, bends, turns neck | sternocleidomastoid
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| elevate scapula | levator scapulae, upper trapezius
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| levator scapulae | lifts scapula
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| upper trapezius | elvate scapula
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| depress shoulder | pec minor
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| pec minor | depress shoulder
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| retract shoulder | middle trapezius, rhomboids
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| middle trapezius | retract shoulder
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| rhomboids | retract shoulder
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| adduction of arm | pec major, latissimus dorsi
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| pec major | adduction of arm
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| latissimus dorsi | adductuion of arm
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| abduction of arm | deltoid
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| raise arm horizontally | SITS
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| deltoid | abduction of arm
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| SITS | raise arm horizontaly
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| flexion of forearm | bicep, brachialis, brachioradialis
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| supination of forearm | bicep, brachialis, brachioradialis
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| extension of forearm | triceps
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| 3 regions in hand | thenar(thum), hypothenar(pinky), central
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| abduction of thigh | gluteus minimus, medius
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| extension of leg | gluteus maximus
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| gluteus minimus, medius | abduction of thigh
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| which of gluteus minimus, medius, maximus important for walking and its function | medius, minimus, keep pelvis leveled
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| adduction of leg | illiopsoas, adductor muscle group
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| flexor of femor | illipsoas, adductor muscle group
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| illiopsoas | adduction, flexion of leg
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| adductior muscle group | adduction, flexion of leg
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| ext @ knee, flex @ hip | quadriceps (vastus lateralis, medialis, rectus femoris)
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| flex @ knee, ext @ hip | hamstrings (semitendonous, semimembranous, biceps femoris)
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| plantar flex | gastrocenemious, soleous, calcaneal tendon
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| gastrocnemius | plantar flex
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| soleus | plantar flex
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| dorsiflex | tibialis anterior, extensor hallucis longus
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| tibialis anterior | dorsiflex
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| flexion of wrist | flexor carpi radialis, flexor carpi ulnaris, plmaris longus
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| extension of wrist | extensor carpi radialis, ext carpi ulnaris, ext carpi brevis
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Created by:
honghee
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