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