superficial muscles of back + shoulders Flashcards

1
Q

what three muscles make up the superficial muscles of back and shoulder

A

deltoid, trapezius, latissimus dorsi

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2
Q

where does the deltoid originate

A

acromial end of clavicle, acromion process + spine of scapula

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3
Q

where does the deltoid insert

A

deltoid tuberocity of humerus

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4
Q

what movement(s) does the deltoid perform

A

shoulder ABduction, flexion, extension, medial + lateral rotation

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5
Q

what nerve supplies the deltoid

A

axillary nerve

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6
Q

where does the trapezius originate

A

occipital bone of skull, cervicle and thoracic vertabrae

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7
Q

where does the trapezius insert

A

acromial end of clavicle, acromion and spine of scapula

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8
Q

what movement(s) does the trapezius perform

A

elevates, depresses, and retracts scapula

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9
Q

what nerve supplies the trapezius

A

accessory nerve

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10
Q

where does the latissimus dorsi originate

A

thoracic + lumbar vertebrae, iliac crest of ilium

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11
Q

where does the latissimus dorsi insert

A

intertubercular groove of humerus

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12
Q

what movement(s) does the latissimus dorsi perform

A

medial shoulder rotation, extension, ADduction

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13
Q

what nerve supplies the latissimus dorsi

A

thorocodorsal

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