Muscular Pt.2 Brachium Muscles Flashcards

1
Q

Pectoralis Major:

A

Location: Superficial anterior thorax

Insertion: proximal humerus

Action: Flexes, aDDucts medially to rotate humerus

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2
Q

Latissiumus Dorsi:

A

Location: Superficial posterior thorax

Insertion: Humerus

Shape: wide muscle from waist to armpit

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3
Q

Latissiumus Dorsi Actions:

A

ADDuction & medially rotate humerus

backward swing of arms to walk

arms upward to pull body up do a chin up

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4
Q

Deltoid:

A

Location: Cap of shoulder
Insertion: Diaphysis of humerus

Shape: Triangular

Action: swings arm while walking

adjustment of hand height to reach for a item on a shelf

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5
Q

Deltoid Fibers:

A

Anterior fibers: flex arm/ shoulder

Lateral fibers: ABDUCT arm

Posterior fibers: extend fibers

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