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Related Flashcards
Cards In This Set
| Front | Back |
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Origin
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Attachment to the immovable bone
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Insertion
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Attach to a movable bone
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Prime movers
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Provide major force for producing a specific movement
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Antagonist
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Oppose or reverse a particular movement
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Naming skeltal muscles
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Bocation, shape, size, direction, number of orgins, location of attachments, action
|
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Sternocleidomastiod
|
 Prime mover of the head; orgin-sternum and clavicle; insertion-mastoid process |
 Diaphram |
 Prime mover of inspiration, flattens on contraction |
|
External intercostals
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More superficial layer that lifts rib cage; allows inspiration
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Internal intercostals
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Deeper layer that aids in forced expiration
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 Latissimus dorsi |
 Prime mover of arm extension; orgini- lumbar vertabrae and iliac crest; insertion- intertubercular groove of humerus |
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Rotator cuff muscles
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 Supraspiatus, infraspinatus, teres minor, subscapulaus,; reinforce capsule of shoulder |
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Deltoid
|
 Prime mover of arm abduction |
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Pectoralis major
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 Prime mover of arm flexion; arigin-clavicle and sternum, insertion- intertublecular groove of the humerus |
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Biceps brachi and brachialis
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 Prime movers of forearm flexion'; orgin-caranoid process and glenoid cavity; insertion- radial tuberosity |
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Brachioradialis
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Acts as synergist; helps atablize elbow
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