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Upper Extremity Muscles Study Guide

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Comprehensive upper extremity muscles study guide covering muscles of the shoulder all the way to the intrinsic hand and finger muscles. Includes highlighted pictures of each muscle plus the origins, instertions and actions of each. Perfect for any healthcare students who need an easy way to memorize these muscles or for anyone interested in anatomy.

Content preview

VE
MusclesPectoralis
majorOrigin sternum costalcartilages
Insertion Crestofgreatertubercle
Action FlexionandAdduction of
the


humeruslatissimus
DorsiOrigin Last6Thoracicvertebrae fascia
Insertion intertubercularGroove
Action extendadductandmedially
rotatethehumerus movingtrunk
forwardandupwardassistsw


breathingDeltoidOrigin
lateralclaviclesuperioracromion
andsuperiorscapularspine
Insertion deltoidtuberosityon
numerus
heads
Anterior
Middle
Action Anteriorhead flexes medial
Posterior rotation middlereadabduction
posteriorheadextension lateralrotation
horizontalabduction
Teresmajor
humerus3
Origin Inferiorangleof
Insertion Inter
scapula
tubercularGroovenumerus
Action extendsmediallyrotatesandadducts
the

, 4 Rotator cuff muscles
Teres minor Origin lateralborderofscapula
Insertion GreaterTubercle ofhumerus
Action LateraceamanRotation

oM
aaaggghhatT




supraspinatus Origin supraspinousfossascapula
mdhnttttddddttFa
st As Insertion Greatertubercleofhumerus
action abductionofthehumerus




Infraspinatus
Origin Infraspinatusfossascapula
Insertion Greatertuberclenumerus
Action lateral external Rotation of
pharmmharathmammmeramshthmakamfaooo

Humerus




subscapularis
Origin subscapularfossa
Insertion lessertubercleofhumerus
Action medial internal rotationornumerus
fkff
piffffIhofp
ffifMMNMMMfp

App
antes

Document information

Uploaded on
April 3, 2026
Number of pages
14
Written in
2025/2026
Type
Class notes
Professor(s)
N/a
Contains
All classes
$8.98

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