Muscle 4 definitions

# Definition Sets
1 full rom against gravity, with some resistance 3 sets
2 good, moderate resistance 3 sets
3 serratus posterior superior muscle 3 sets
4 all the sarcomeres do the same and the whole muscle shortens (contracts) 3 sets
5 movement possible against gravity and some resistance 2 sets
6 consists of cells that are specialized for contraction. 2 sets
7 myosin heads bind to active sites on actin molecules 2 sets
8 moves against resistance, but weak. 2 sets
9 1 excitability 2 contractility 3 extensability 4 elasticity 2 sets
10 ach is broken down by (ache) acetylcholinesterase (enzyme) ending contraction. goes on as long as atp and neuraltransmitter are around to power 2 sets
11 instruct patient in the action that you wish them to do (you want them to move away from the barrier that you have positioned them against) and how much force you want them to use. 1 set
12 o: adjacent sides of 1st-5th metatarsals i: bases of proximal phalanges and extensor expansions of extensor digitorum longus tendons; 1st: medial side of 2nd toe, 2nd-4th into lateral sides of 2nd -4th toes n: lateral plantar n a: abduction of 2nd-4th toes away from axis of 2nd toe, flexes mtp joint 1 set
13 -aka myocyte -long, cylindrical, and oval -multinuclear -has sacrolemma 1 set
14 heat generation (especially skeletal muscle) 1 set
15 -indivisual cell -contains myofibrils -has a sarcolemma -has a sarcoplasmic reticulum 1 set
16 calcium ions released from sarcoplasmic reticulum 1 set
17 identify the plane of movement and the axis of rotation. the purpose is to identify which side of the joint the muscles controlling the movement cross. 1 set
18 new atp attaches to "uncocked" myosin head - allows myosin head to release from actin binding site"cocking" process begins again 1 set
19 3. myosin binds to actin, pulls actin together 4. calcium is removed from myofibril 1 set
20 cricothyroid, and muscles of the pharynx. 1 set
21 released calcium combines with troponin, a molecule associated with actin (muscle still not contracted) 1 set
22 myosin binding site is exposed 1 set
23 engage chosen muscle or muscle groups and apply counterforce for 3-5 seconds that closely approximates patient effort 1 set
24 layers of skin 1 set
25 most pharyngeal constrictors, cirocthyroid, levator veli palatini 1 set
26 full range of motion against gravity 1 set
27 -most skeletal muscles run from one bone to another -one bone will move other remains fixed -attach to origins and insertions by connective tissue -bone markings present where tendons meet bones 1 set
28 muscle work in opposing pairs 1 set
29 1. acetylcholine is decomposed by acetylcholinesterasae 2. ca ions transported back to sr 3. actin & myosin links broken 4. active site blocked again 1 set
30 myosin binds actin forming a crossbridge 1 set
31 diameter of muscle fascicle arrangement number of active motor units (recruitment) muscle biochemistry 1 set
32 ca catalyses: -calcium ions catalyses contraction process -in resting fiber, tropomyosin covers active site -active site - where myosin cross bridge attaches to actin -ca bind to troponin -troponin to change shape -tugs on tropomyosin to move it away from active site 1 set
33 good; full rom against gravity with against partial resistance 1 set
34 extensor digitorum brevis (insertion) 1 set
35 net movement of blood flow is up 1 set
36 myosin heads bind to actin (at actin's mbs) 1 set
37 (1) muscle cells occur virtually everywhere in vertebrate bodies→(2) contribute to the functioning of nearly every organ system (3) striated (skeletal) muscle = predominant type→ (4) 80% of the soft tissue of vertebrates 1 set
38 longus capitis 1 set
39 the release of calcium from the sarcoplasmic reticulum. 1 set
40 following 2-minutes of exercise, and if the exercise is moderate, aerobic respiration contributes the major energy production supporting actions of the skeletal muscle. whether exercise is light, moderate, or heavy for a person depends on that person's maximal capacity for aerobic exercise (which is determined by several factors primarily related to the muscle, respiratory, and circulatory systems). 1 set
41 1. excitability - can generate and conduct electrical impulses 2. contractility - muscle tissues shortens when stimulated -isometric contractions-tissue develops tension but does not shorten -isotonic contractions-tension remains same and tissue shortens 3. extensibility - muscle can be stretched without damage 4. elasticity - muscle returns to its original length and shape after contraction 1 set
42 release of calcium which then binds to troponin c subunit causing conformational change 1 set
43 pharyngeal constrictors, criccothyroid vagus - superior laryngeal 1 set
44 full rom with some resistance 1 set
45 there are 2 types of muscle proteins -- actin and myosin (called microfilaments). these proreins make up larger cylindrical structures called myofibrils. the myosin protein has small projections call crossbridges. the actin myofilament is "wrapped" by two other proteins; troponin and tropomyosin. in a relaxed muscle, the actin myofilament and myosin crossbridges do not touch each other. however, in the presence of calcium ions (which expose a receptor site for crossbridge attachment on the actin/troponin/tropomyosin), and atp (which moves the crossbridges), actin touches the crossbridges of myosin. these 2 proteins slide relative to each other and the muscle cell shotens 1 set
46 -the "power stroke"=the myosin heads bend ("unlock"), pulling hte actin toward the center of the scromere, as adp and pi are released. -cross bridge detatchment=new atp binds to the myosin heads, causing them to release the actin -myosin reactivation=the atp splits into adp and pi, re-energizing the myosin heads again. -the cycle of events is repeated over and over 1 set
47 parallel pennate convergent circular 1 set
48 completes full rom against gravity, moderate resistance 1 set
49 atp is split. myosin head, now cocked, binds to exposed binding site, forming cross bridge 1 set
50 involuntary muscle holding chemical muscle holding voluntary muscle holding adaptive shortening 1 set
51 1. movement of bones/fluids 2. maintain posture and body position 3. stabilize joints 4. heat generation (esp skeletal) 1 set
52 pelvic diaphragm 1. levator ani a) pubococcygeus b) iliococcygeus 2. coccygeus external anal sphincter external urethral sphincter superficial transverse perineal muscle deep transverse perineal muscle ischiocavernosus bulbospongiosus 1 set
53 complete range of motion against gravity with some resistance. transcient clonus 1 set
54 -prime mover (agonist_ -antagonist -synergist -fixator 1 set
55 muscles must have at least two attachments and must cross at least one joint 1 set
56 ach diffuses across synaptic cleft and binds to receptors on muscle membrane 1 set
57 ach binds to the sarcolemma 1 set
58 posture stabilization preparedness heat 1 set
59 epimysium perimysium endomysium sarcolemma 1 set
60 cross-bridge releases actin 1 set
61 active movement against resistance 1 set
62 1) intrinsic muscle properties (weak cross bridge attachments), 2) passive muscle properties (titin), 3) descending motor signals, 4) proprioceptive info 1 set
63 moderate-movement against gravity with some resistance 1 set
64 actin is moved toward the center of the sarcomere causing the muscle fiber to shorten 1 set
65 0 1 set
66 movement, posture, joint stabilization, head generation 1 set
67 1. gracilis 2. adductor longus 3. adductor brevis 4. adductor magnus 1 set
68 *limited movement, weakness/fatigue, paralysis, tremor/tic/spasm, clumsy *injury, strenous, sudden mvmt, stress *heat, ice, splints, rest *muscle relax, salicylate, nsaids, otc 1 set
69 smooth, skeletal, cardiac, nervous 1 set
70 4:movement against moderate resistance 1 set
71 movement against gravity, some resistance 1 set
72 permeability of sarcolemma changes (na rushes in)(an action potential is produced) 1 set
73 skeletal muscle tissue, connective tissue, nervous tissue, blood 1 set
74 producing movement, maintain posture, stabilize joints, generate heat 1 set
75 1. lack of carbohydrate source 2. lack of atp 3. lactic acid drops ph which interferes with protein function 4. junctional fatigue- loss of ach 1 set
76 full rom with moderate resistance 1 set
77 good -against gravity with some resistance complete range of motion evident 1 set
78 striations, nuclei, size, location of nuclei 1 set
79 whole muscle muscle fascicle muscle fibers myofibril 1 set
80 musculus, musculi ≈ mys, myos 1 set
81 active movement w/ full rom against moderate resistance 1 set
82 prime movers (agonists) • responsible for producing a particular movement antagonists • actions oppose the action of the agonist synergists • assist the prime mover in performing an action fixators • agonist and antagonist muscles contracting at the same time to stabilize a joint 1 set
83 epimysium-smooth application of force to the bone perimysium-pathways for nerves and blood vessels endomysium sarcolemma-excitable membrane 1 set
84 full rom w/ decreased strength 1 set
85 released calcium combines with troponin, a molecule associated with actin 1 set
86 good. complete rom against gravity with some resistance 1 set
87 full rom against gravity, some resistance 75%- good 1 set
88 work in opposing pairs 1 set
89 from with gravity and some resistance 1 set
90 can be controlled voluntarily cells attatch to connective tissue cells are striated cells have more than one nucleus 1 set
91 1) biceps femoris 2) semitendinosus 3) semimembranosus 4) adductor magnus 1 set
92 calcium combines with troponin a molecule associated with action. hooks on to actin. 1 set
93 full rom against gravity, some resistance 1 set
94 - contractility - excitability - extensibility - elasticity 1 set
95 1) visceral organ muscles: smooth and cardiac 2) pharyngeal arch muscles: pharyngeal skeletal muscles, also head and neck 3) axial muscles: thoracial skeletal muscles, abdomen, pelvis, neck, head 4) limb muscles: self-explanatory 1 set
96 degeneration regeneration hypertrophy atrophy 1 set
97 (atp binding, actin release)binding of atp to myosin head detaches the link 1 set
98 active movement against gravity & some resistance 1 set
99 calcium combines with troponin 1 set