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Questions 2025
What are the attachments of the descending part of the trapezius muscle?: -
superior nucal line, external occipital protuberance and nuchal ligament, clavicle and acromion of scapula
What are the attachments of the middle part of the trapezius muscle?: spinous
processes of thoracic vertebrae, spine of the scapula
What are the attachments of the ascending part of the trapezius muscle?: spin-
ous process of thoracic vertebrae, spine of scapula
What is the action of the descending part of the trapezius muscle?: elevates scapula
What is the action of the middle part of the trapezius muscle?: retracts scapula
What is the action of the ascending part of the trapezius muscle?: depresses scapula
What is the action of the descending and ascending parts of the trapezius
muscle together?: rotate scapula superiorly
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, What is the innervation of the trapezius muscle?: spinal accessory nerve
What are the attachments of the latissimus dorsi muscle?: spinous processes of thoracic
and lumbar vertebrae, iliac crest, lower ribs, and the bicipital grove of humerus
What are the actions of the latissimus dorsi muscle?: extends, adducts and medially
rotates humerus, and raises body when climbing
What is the innervation of the latissimus dorsi muscle?: thoracodorsal nerve
What is the attachment of the rhomboid major muscle?: spinous processes of upper
thoracic vertebrae
What is the attachment of the rhomboid minor muscle?: spinous processes of C7 andT1
What is the attachment of both the rhomboid major and minor muscles?: -
medial boarder of scapula
What is the action of both the rhomboid major and minor muscles?: retract
scapula and rotate scapula inferiorly
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