front 1 Flexor Hallucis longus | back 1 flexes the great toe and exerts the foot |
front 2 Fibularis brevis, fibularis longus | back 2 lateral compartment muscles that plantar flex and evert the foot |
front 3 gluteus medius, tensor fasciae latae | back 3 Abduct the thigh to take the “at ease” stance |
front 4 gluteus maximus | back 4 used to extend the hip when climbing stairs |
front 5 gastrocnemius, soleus | back 5 prime movers of plantar flexion of the foot |
front 6 tibialis posterior | back 6 prime mover of inversion of the foot |
front 7 tibialis anterior | back 7 prime mover of dorsiflexion of the foot |
front 8 adductor group | back 8 Adduct the thigh as when standing at attention |
front 9 extensor digitorum longus | back 9 extends the toes |
front 10 biceps femoris, semimembranousus, semitendinous | back 10 extend thigh and flex knee |
front 11 Rectus femoris | back 11 extends the knee and flexes thigh |
front 12 What are the 4 muscles commonly used for intramuscluar injections? | back 12 Deltoid vastus lateralis gluteus medius gluteus maximus |
front 13 The insertion tendon of the __ group contains a large seasmoid bone, the patella | back 13 quadriceps |
front 14 The tricep surae insert in common into the __ tendon | back 14 calcanal |
front 15 The bulk of the tissue of a muscle tends to lie __ to the part of the body it causes to move | back 15 mediala proximal |
front 16 The extrinsic muscles of the hand originate on the | back 16 forearm |
front 17 Most flexor muscles are located on the __ aspect of the body | back 17 anterior |
front 18 Most extensors are located__ | back 18 posteria |
front 19 An exception to this generalzation is the extensor-flexor musculature of the __ | back 19 knee |
front 20 Prime mover(agonist) | back 20 term for the bicep bracket during elbow flexion |
front 21 synergist | back 21 term that describes relations of brachialis to biceps bracket during elbow flexion |
front 22 Antagonist | back 22 term for triceps bracket during elbow flexion & term for iliopsoas during hip extension |
front 23 Fixator | back 23 terms for the rotator cuff muscles and deltoid when the elbow is flexed and the hand grabs a tabletop to lift the table |
front 24 What is the basic functional unit of a myofibril? | back 24 sacromere |
front 25 Which structures moves toward the center of the sacromere when the fiber contracts? | back 25 z discs |
front 26 Where would you find the largest amount of glycogen? | back 26 sacroplasm |
front 27 The region where only myosin proteins are found | back 27 H zone |
front 28 Sphincters | back 28 allow food to stomach |
front 29 Functions of muscle tissue | back 29 motion, maintenance of posture, heat production, and storage |
front 30 What do cardiac fibers do | back 30 contract and relax rapidly, continuously,and rhytmically(autorhythmicity) |
front 31 Superficial fascia | back 31 connects skin to underlying muscle tissue. |
front 32 Deep fascia | back 32 surrounds and suspends muscles and viscera |
front 33 Aponeurosis | back 33 a sheet like tendon joining two muscles or muscle to bone |
front 34 Myosin | back 34 thick |
front 35 Actin | back 35 thin |
front 36 Myofibrils | back 36 little threads running longitudinally and contain two types of smaller and shorter elements called myofilaments |
front 37 there are thousands of tranverse tubules in each fiber why? | back 37 make sure the nerve impulse excites all parts of the cell at one time |
front 38 What are transverse tubules | back 38 extensions of the sarcolemma into the muscle fiber |
front 39 What are myofilaments that are arranged into compartments called | back 39 sarcomeres |
front 40 what are sacromeres | back 40 Functional units of a myofibril |
front 41 A band | back 41 Extends from one end to the other of the thick myofilaments and forms dark situations in skeletal muscle |
front 42 I band | back 42 extends from the end of one thick filament to the beginning of the next and forms the light striations |
front 43 Z line | back 43 is in the middle of each I band |
front 44 H zone | back 44 within the center of the A band contains thick myofilaments but NO thin myofilaments |
front 45 M line | back 45 compromised of supporting proteins which run down the middle of H zone and hold thick myofilaments together |
front 46 the site where nerve and muscle meet is called what | back 46 neuromusclar junction (NMJ) |
front 47 Initiation of muscle action potential excitation | back 47 nerve impulses arrives at the neuromuscular junction acetylcholine molecules bind the receptors in motor end plate causing ion channels to open the influx of cations causes the muscle action potential to travel over the sarcolemma the calcium pumps then pumps calicum against the concentration gradient to the actin |
front 48 Initiaiton of contraction cycle | back 48 the calcium ion binds to troponin causing troponin-tropomyosin complex to move away from mysoin binding sites the calcium ions also cause the mitchondria to release ATPase the enegized mysoin head attaches to the myosin-binding site on actin forming cross bridge cross bridge rotates towards the center of the sarcomere |
front 49 Mysoin heads | back 49 ”walking” along the thin filaments progressively pulling thin filaments toward the M line |
front 50 sliding filament mechanism | back 50 the action of the skeletal muscle shortening during contraction because the thick and thin filaments slide past one another |
front 51 what are tropomysoin | back 51 regulatory proteins |
front 52 Stationary is what | back 52 proximal and the origin |
front 53 moveable is what | back 53 distal and the insertion |
front 54 what does the bone serve as | back 54 levers |
front 55 what does joints serve as | back 55 fulcrums |
front 56 first class levers | back 56 EFL= effort, fulcrum, load |
front 57 second class levers | back 57 FLE=Fulcrum, load, effort |
front 58 third class levers | back 58 FEL=fulcrum, effort, load |
front 59 in arm flexion the triceps bracket would be the ___ and the biceps brachii would be the __ | back 59 Antagonist and agonist |