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study guide for muscle test

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
Flexor muscle   bends a joint located on the anterior of the wrist  
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deltoid   raises the arm laterally  
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tricep brachii   extends the fore arm  
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Quadriceps   rectus femoris, vastus lateralis, vastus medialis, vastus intermedialis  
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hamstring   posterior thigh, bicep femoris, semitendonosis, semimebranosis  
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Pectoralis major   located in the chest helps to adduct the arm  
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erector spinae   back muscle that extends the spine  
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Sternocleidomastoid   connects sternum to mastoid process, turns the head  
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sarcomere   smallest contractile unit of the muscular system  
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myosin   protein in the sarcomere that is located in the middle, and contains the cross bridges  
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atrophy   decrease in muscle size  
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hypertrophy   increase in muscle size  
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bicep brachii   flexes the elbow and supinates the forearm  
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sartorius   tailors muscle, helps you cross your leg  
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masseter   jaw muscle helps you chew your food  
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tibialis anterior   front of the lower leg, dorsiflexes and inverts the foot  
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abduction   moving the limb away from the body. raising the arm laterally  
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inversion   turning the sole of the foot medially  
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isometric contraction   same length, example pushing on a wall  
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isotonic contraction   same tension, example lifting weights  
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lactic acid   waste product of anaerobic respiration, forms when oxygen is not available  
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frontalis   produces lateral wrinkles on your forhead  
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orbicularis oris   closes and protrudes the lips  
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agonist   muscle that acts against the antagonist  
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orbicularis oculi   muscle used for winking  
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Created by: TeresaGentry