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Back Muscles
Back Muscles
10
Anatomy
Graduate
01/27/2009

Additional Anatomy Flashcards

 


 

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Term
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Definition

Trapezius

 

O: Occipital Protuberance, Ligamentum Nuchae, C7-T12 spinous processes

 

I: Upper: Lateral 1/3 clavicle, acromion

    Middle: Spine of scapula

    Lower:Root of spine

 

A: Upper: upward rotation, elevation

Middle: retraction

Lower: upward rotation, depression

 

N: Cranial nerve XI (accesory), branches of C3,4

 

B: Transverse cervical artery

Term
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Definition
Latissimus Dorsi
 
O: Thoraclumbar apopneurosis, inferior 6 thorassic spinous processes, iliac crest and sacrum, inferior 3-4  ribs, inferior angle of scapula
 
I: Bicipital (intertubercular) groove of humerus
 
A: Medial rotation, adduction, extension of humerus
 
N: Thoracodorsal nerve (C6,7,8)
 
B: Thoracodorsal artery
Term
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Definition
Levator Scapula
 
O: Tranverse processes C1-C4
 
I: Vertebral border of scapula between superior angle and root of spine
 
A: Elevation, downward rotation
 
N: Dorsal scapular nerve (C5) and branches of C3,4
 
B: Dorsal scapular artery
Term
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Definition
Rhomboid Minor
 
O: Spinous processes C7, T1
 
I: Root of spine of scapula
 
A: Retraction, downward rotation
 
N: Dorsal scapular nerve (C5)
 
B: Dorsal scapular artery
Term
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Definition
Rhomboid Major
 
O: Spinous processes T2-T5
 
I: Vertebral border from root of scapular spine to inferior angle
 
A: Retraction, downward rotation
 
N: Dorsal scapular nerve (C5)
 
B: Dorsal scapular artery
 
Term
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Definition
Serratus Posterior Superior
 
O: Caudal ligamentum nuchae, spinous processes of C7,T1,T2
 
I: Superior 2,3,4,5 ribs
 
A:  Raises ribs during inspiration
 
N:  Intercostal nerves T1,T2,T3,T4
 
B: Posterior intercostal arteries T1,T2,T3,T4
Term
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Definition
Serratus Posterior Inferior
 
O: Spinous processes of T11-L3
 
I: Inferior borders of inferior 4 ribs
 
A: Draws ribs out and down counteracting diaphragm during expiration
 
N: Intercostal nerves T9-12
 
B:  Intercostal arteries T9-12
Term
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Definition
Spinalis
 
O: ligamentum nuchae, cervical and thoracic transverse processes
 
I: cervical and thoracic spinous processes, occiptal bone
 
A: Bilaterally- Extension, Unilaterally- lateral flexion
 
N: Dorsal rami of spinal nerves
 
B:  Muscular branch of the aorta
Term
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Definition
Longissimus
 
O: Thoracolumbar apopneurosis, lumbar and thoracic transverse processes
 
I: cervical and thoracic spinous processes, mastoid process
 
A: Bilaterally- Extension, Unilaterally- lateral flexion
 
N: Dorsal rami of spinal nerves
 
B:  Muscular branch of the aorta
 
Term
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Definition
Iliocostalis
 
O: Thoracolumbar apopneurosis, posterior ribs
 
I: Posterior ribs, cervical transverse processes
 
A: Bilaterally- Extension, Unilaterally- lateral flexion
 
N: Dorsal rami of spinal nerves
 
B:  Muscular branch of the aorta
 
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