Shoulder Flashcards by Laura Beth Thomas

Levator Scapula

(PA and DA)

PA- transverse processes of the atlas and axis and from the posterior tubercles of the transverse processes of the third and fourth cervical vertebrae

DA- the vertbral border of the scapula between the medial angle and the trianglar smooth surface at the root of the spine

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Latissimus Dorsi

(Action)

Scapula- depresses and downwardly rotates scapula at the SC and AC joints; elevatestrunk against fixed scapula

GH- extension, IR, adduction

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Upper Trapezius

(PA and DA)

PA- external occipital protuberance, superior nuchal line, ligamentum nuchae

DA- Upper lip of the lateral third of clavicle

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Latissimus Dorsi

(Innerrvation)

thoracodorsal N

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Subscapularis

(PA and DA)

PA- anterior suface of subscapular fossa of scapula

DA- lesser tubercle of humerus

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Coracobrachialis

(Innervation)

Musculocutanous N

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Pectoralis Minor

(PA and DA)

PA- External surface of the third through fifth ribs

DA- medial border of coracoid process

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Lower Trapezius

(PA and DA)

PA- spinous processes of T3 to T12

DA-triaangular area at the medial end of the scapular spine

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Teres Minor

(Innervations)

Axillary N

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Serratus Anterior

(Innervation)

Long Thoracic N

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Supraspinatus

(Innervation)

Suprascapular N

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Pectoralis Major

(PA and DA)

PA- (Claviclaur head) anterior surface of the medial thrid of the clavicle, lower lip

(Sternal head) anterior surface of sternum and costal cartiages

DA- lateral lip of bicipital groove

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Coracobrachialis

(Action)

helps stablize shoulder joint

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Lower Trapezius

(Action)

Depresses scapula; Upwardly rotates scapula

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Rhomoid Major and Minor

(Action)

Retraction of scapula; elevation of scapula; downwardly rotates of scapula

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Deltiod

(DA)

deltiod tuberosity

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Middle part of Deltiod

(Action)

GH abduction

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Subscapularis

(Innvervation)

Upper and Lower Subscapular N

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Rhomoid Major and Minor

(PA and DA)

Major: PA- Spinous processes of T2-8

DA- medial border of scapula

Minor: PA- Spinous processes of C7- T1

DA- above the spine, major is below

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Serratus Anterior

(Action)

Protaction and Upward Rotation of the Scapula

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Teres Major

(Action)

GH IR, Extension, Adduction

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Deltiod

(Innervation)

Axillary N

Upper Trapezius

(Innervation)

Spinal Accessory N

Levator Scapula

(Action)

Protraction and Upward Rotation of the Scapula

Teres Minor (PA and DA)

PA- lateral border of scapula superior to teres major DA- greater tubercle, inferior facet of humerus

Pectoralis Minor (Action)

Scapular Depression, Protraction, Tilt, and Downward Rotation

Infraspinatus (Action)

GH ER

Teres Major (PA and DA)

PA- lower third of the lateral side, posterior aspect of inferior angle of scapula, below the teres minor DA- medial lip of bicipital groove (anterior to latissimus dorsi)

Levator Scapula (Innervation)

Dorsal Scapular N

Subclavius (Innervation)

Subclavian N

Pectoralis Major (Action)

Clavicular head- GH horizontal adduction, flexion, adduction below 90\*/ abduction above 90\* Sternal head- GH adduction, horizontal adduction

Coracobrachialis (PA and DA)

PA- apex of the coracoid process by a common tendon with the short head of the biceps DA- medial aspect of middle shaft of the humerus

Supraspinatus (Action)

GH abduction

Infraspinatus (PA and DA)

PA- Infraspinous fossa of the scapula DA- greater tubercle, middle facet of humerus

Postior part of Deltiod (Action)

GH- adduction, extension, ER

Pecetoralis Minor (Innervation)

Medial Pectoral N

Subclavian (PA and DA)

PA- at the extreme anterior end of the first rib DA- inferior middle third of the clavicle

Middle Trapezius (PA and DA)

PA- Spinous Processes of C7 ro T3-4 DA- medial margin of the acromion, and into the superior lip of the posterior border of the spine of the scapula

Middle Trazius (Action)

Retraction of Scapula; contributes to upwards rotation

Pectoralis Major (Innervation)

medial and lateral pectoral N

Teres Major (Innervation)

Lower Subscapular N

Anterior part of Deltiod (Action)

GH adduction, Flexion, IR

Teres Minor (Actions)

GH ER

Serratus Anterior (PA and DA)

PA- anterior surface of the upper 8 ribs DA- medial border of the anterior surface of the subscapular fossa of the scapula

Supraspinatus (PA and DA)

PA- supraspinus fossa of scapula DA- great tubercle, superior facet of humerus

Subscapularis (Action)

GH IR, Adduction, Extension

Subclavius (Action)

Stablizes/ Depresses the Clavicle

Lower Trapezius (Innervation)

Spinal Accessory N

Latissimus Dorsi (PA and DA)

PA- thoracodorsal fascia, sacrum, iliac crest, spinous processes of lumbar vertebrae DA- floor of biciptal groove of humerus; spirals anterior to teres major tendon (Book says- floor the intertubercular groove of the humerus)

Middle Trapezius (Innervation)

Spinal Accessory N

Deltiod- Anterior, Middle, Posterior (PA)

Anterior- lateral third lip of clavicle Middle- acromion of scapula Posterior- lower lip of the posterior border of the spine of the scapula

Infraspinatus (Innervation)

suprascapular N

Rhomboid Major and Minor (Innervation)

Dorsal Scapular N

Upper Trapezius (Action)

Elevation of Shoulder; Upward Rotation of Scapula