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test 2A
various stuff
| Question | Answer |
|---|---|
| golgi tendon organ | organ of the sensory division which detects the strain of the muscle/tendon complex thereby causing muscle actions to reduce injury |
| muscle spindle | specialized muscle fibers whose function is to monitor the length of the muscle and along with sensory nerve ending communicate to the CNS to maintain the desired muscle length |
| tropomyosin | tube shaped protein which twists around the actin strand which hides the active sites during muscle relaxation |
| slow-twitch (ST) fiber - type I | type of muscle fiber characterized by slower peak tension time, lowest power and high aerobic endurance - endurance athletes, marathoners |
| neuromuscular junction | site where motor neurons communicate with muscle fibers |
| sacroplasm | flud inside the muscle fiber composed of various organels and other cell material |
| sarcoplasmic reticulum | calcium storage area which wraps around myofibrils |
| myosin cross-bridge | the two-headed portion of myosin filament with attachment sites for actin and ATP |
| muscle fiber | another name for a muscle cell whose structure contains nucleus, mitocondria, sacroplasm and myofibril. Individual muscle cell whose size ranges from 10-80um is diameter and range up to 12cm long. |
| fast-twitch (FT) fiber - type 2 - | a type of muscle fiber which is characterized by lower peak tension time and highest power (sprinter) |
| ATP | chemical source for energy for body - adenosine triphosphate |
| Proprioception | It is not movement. It is knowledge of where you body parts are. |
| Intrafusal Muscle Fibers | Attached at two points. |
| Extrafusal Muscle Fibers | Skeletal or voluntary muscles. |
| Three kinds of muscle | striated, smooth, cardiac |
| perimysium | The sheath of connective tissue enveloping bundles of muscle fibers. |
| Endomysium | literally meaning within the muscle, is a layer of connective tissue that ensheaths a muscle fiber and is composed mostly from reticular fibers. It also contains capillaries, nerves and lymphatics. |
| Carbohydrate’s primary role | fuel |
| Grains / Rice / Pasta / Bread RDA | 6-11 servings |
| Veggie RDA | 3-5 servings |
| Fruit RDA | 2-4 servings |
| Dairy RDA | 2-3 servings |
| Meats RDA | 2-3 servings |
| standard target HR calc | 220-AGE x intensity % |
| Karvonen HR calc | (220-age-resting HR) x intensity % + resting HR |
| average resting HR 60-80 bpm | (blank) |
| max HR | 220-age |
| daily carb RDA | 45-65% |
| daily protein RDA | 10-35% |
| daily far RDA | 20-25% |
| ectomorph | hard to gain weight or add muscle |
| mesomorph | naturally muscular build |
| endomorph | big boned - thick joints |
| action potential | muscle operate by signal from brain |
| what is the action of Tres Major | Shoulder - Adduction / extention / internal rotation / Adduction |
| what is the action of Latissmus Dorsi | Shoulder - Adduction / extention / internal rotation / Adduction |
| What is the action of Pectoralis Major | Shoulder - Transverse Flexion / Transverse Adduction / Internal Rotation / Adduction / Flexion / Abduction |
| What is the action of Serratus Anterior | Scapula - Abduction / Upward Rotation / Elevation |
| What is the action of Pectoralis Minor | scapula - Abduction / Downward Rotation / Depression |
| tres major (origin) | origin - inferior angle of scapula |
| tres major (insert) | insert - medial bicipital groove of humerus |
| Pectoralis Major (origin) | origin - medial 1/2 of clavicle / sternum and costal junction of upper 6 ribs |
| Pretoralis Major (insert) | insert - lateral greater tubercle of humerus |
| Latissimus Dorsi (origin) | origin - sacrum and iliac crest, lower 3-4 ribs |
| Latissimus Dorsi (insert) | insert - middle bicipital groove of humerus |
| Serratus Anterior (origin) | origin - outer surface of upper 8 ribs |
| Serratus Anterior (insert) | insert - medial border of scapula |
| Pectoralis Minor (origin) | origin - 3-5th ribs near costal cartilages |
| Pectoralis Minor (insert) | insert - Caracoid Process of the scapula |
Created by:
ginabina3
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