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10 Cards in this Set
- Front
- Back
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What is the origin, insertion, innervation and action of Trapezius?
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O: occipital bone, nuchal ligament & spinous processes of c7-t12
I: spine of scapula, acromion process & lateral 1/3 of clavicle N: spinal accessory nerve (CN X1) action: descending fibers - elevated scapula & produce downward rot. middle fibers - retraction of scapula ascending fibers - depression & upward rot. |
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What is the origin, insertion, innervation and action of Latissimus Dorsi?
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O: spinous processes of inferior 6 thoracic vertebrae, thoracolumbar fascia, iliac crest & inferior ribs 3-4.
I: intertubecular groove N: thoracodorsal nerve action: extension, adduction & medial rotation of glenohumoral jt. |
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What is the origin, insertion, innervation and action of Levaor Scapulae?
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O: tranvese processes of c1-c4
I:superior angle of scapula N: dorsal scapular nerve action: elevation & downward rotation of scapula |
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What is the origin, insertion, innervation and action of Rhomboids?
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major O:spinous processes of t2-t5
I: medial border of scapula minor O:nuchal lig & spinous process of c7 N: dorsal scapula nerve action: retraction & downward rot of scapula |
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What is the origin, insertion, innervation and action of Splenius?
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O: nichal lig & spinous processes of c7-t3
I: cervicis - tranverse processes of c1-c3 capitis - mastoid process & occipital bone action: bilateral - extends head/neck unilateral - lateral flex. of neck, rot. of head to same side |
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What are the 3 erector spinae muscles?
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Iliocostalis (most lateral & longest)
Longissimus Spinalis (shortest) |
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What are the specific parts of each erector spinae muscle?
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Iliocostalis - cervicis,thoracis,lumborum
Longissimus - capitis,thoracis,cervicis Spinalis - capitis,cervicis,thoracis |
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What is the origin, insertion, innervation and action of erector spinae muscles?
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O: sacral & lumbar spinour processes
broad tendon from post. part of iliac crest, sacrum & sacroiliac ligaments supraspinous lig actions: bilateral- exten VC & ext. of head unilateral- lateral flex. |
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What is the origin, insertion, innervation and action of Semispinalis?
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O: tranverse processes of c4-c10
I:occipital bone & spinous processes in upper thoracic & cervical regions actions: ext. head & thoracic, cervical regions & rot them contralaterally |
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What is the origin, insertion, innervation and action of Multifidus?
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O: articular processes of c4-c7 & tranverse processes of t1-t3
articular processes of lumbar vertebrae aponeurosis of erector spinae I: fibers pass obliquely superomedially to spinous processes located 2-4 segments superior to origin action: unilateral - rotates VC to contralateral side |
