Updated: 12/26/2021

Deltoid

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                        Summary
                    
                        Deltoid
                    
                        Origin
                    
                        Lateral third of clavicle, acromion, and spine of scapula
                    
                        Insertion
                    
                        Deltoid tuberosity of humerus
                    
                        Action
                    
                        Anterior part: flexes and medially rotates arm;
                    
                        Middle part: abducts arm;
                    
                        Posterior part: extends and laterally rotates arm
                    
                        Innervation
                    
                        Axillary nerve (C5, C6)
                    
                        Arterial Supply
                    
                        Deltoid branch of thoracoacromial artery

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Flashcards (7)

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1 of 7

Action	Numeric Key	Letter Key	Function Key
Show Bullets		S	Enter (frontside only)
20%	1	N
40%	2	H
60%	3	F	Enter (backside only)
80%	4	E
100%	5	M
Toss	0	T

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Anatomy⎪ Deltoid

Anatomy
- Deltoid

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Deltoid
Origin	Lateral third of clavicle, acromion, and spine of scapula
Insertion	Deltoid tuberosity of humerus
Action	Anterior part: flexes and medially rotates arm; Middle part: abducts arm; Posterior part: extends and laterally rotates arm
Innervation	Axillary nerve (C5, C6)
Arterial Supply	Deltoid branch of thoracoacromial artery