deltoid Flashcards

1
Q

deltoid origin anterior fibres

A

anterior border lateral 1/3 of clavicle

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2
Q

deltoid origin middle fibres

A

outer margin of the acromion

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3
Q

deltoid origin posterior fibres

A

lower border of the spine of scapula

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4
Q

deltoid insertion

A

deltoid tuberosity of the humerus

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5
Q

deltoid nerve supply

A

axillary nerve C5, 6

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6
Q

deltoid action middle fibres

A

abduct the arm at the shoulder (after 30)

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7
Q

deltoid action anterior fibres

A

flex and medially rotate the shoulder

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8
Q

deltoid action posterior fibres

A

extend and laterally rotate the shoulder

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