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Muscles of the Shoulder Girdle and Shoulder Joint
Origin, Action, Insertion
74
Anatomy
Undergraduate 4
10/15/2009

Additional Anatomy Flashcards

 


 

Cards

Term

Trapezius

(Origin)

Definition

 Baske of Skull, Spinous Processes C7-T12.

 

Term

Trapezius

(Insertion)

Definition
Posterior Lateral 1/3 of clavicle, medial acromion, scapular spine
Term

Trapezius

(Action)

Definition

Elevation of Scapula

Extension of Neck

Upward rotation, adduction, depression of scapula

Term

Trapezius

(Inervation)

Definition

Accessory Nerve

(cranial nerve XI)

Term

Trapezius

(Application)

Definition

Large Muscle

Shoulder Elevation

Shoulder Shrugs

Term

Levator Scapulae

(Origin)

Definition
Transverse Processes of C1-C4
Term

Levator Scapulae

(Insertion)

Definition
Medial border of the scapula just above the base of the spine
Term

Levator Scapulae

(Action)

Definition
Elevates the medial aspect of the scapula (look at name)
Term

Levator Scapulae

(Innervation)

Definition
Dorsal Scapular Nerve
Term

Levator Scapulae

(Applicati0n)

Definition
Helps upper trapezius in shoulder shrugging
Term

Rhomboids - Major/Minor

(Origin)

Definition
Spinous processes of the C7 and T1-T5
Term

Rhomboids - Major/Minor

(Insertion)

Definition
Medial border of the scapula just above the base of spine
Term

Rhomboids - Major/Minor

(Action)

Definition
Work together in: Scapular adduction, downward rotation, and elevation
Term

Rhomboids - Major/Minor

(Innervation)

Definition
Dorsal Scapular Nerve
Term

Serratus Anterior

(Origin)

Definition
Surface of the upper nine ribs at the side of the chest area
Term

Serratus Anterior

(Insertion)

Definition
Anterior anspect of the medial margin of the scapula
Term

Serratus Anterior

(Action)

Definition
Abduction and upward rotation of scapula
Term

Serratus Anterior

(Innervation)

Definition

Long Thoracic Nerve C5-C7

Very Important

Winged Scapula

Term

Serratus Anterior

(Application)

Definition

Push-ups (last part)

Bench Press

Military Press

Term

Rhomboids - Major/Minor

(Application)

Definition

Neglected Muscle

Chin-ups and Dips

Computer Muscle

Term

Pectoralis Minor

(Origin)

Definition
Anterior surfaces of 3rd - 5th ribs
Term

Pectoralis Minor

(Insertion)

Definition
Coracoid Process
Term

Pectoralis Minor

(Action)

Definition
Abduction, downward roation, depression of scapula
Term

Pectoralis Minor

(Innervation)

Definition
Medial Pectoral Nerve
Term

Pectoralis Minor

(Application)

Definition

Works with the Serratus Anterior

Dips (up)

Push Ups

Term

Subclavius

(Origin)

Definition
Superior aspect of the 1st rib of the costal junction
Term

Subclavius

(Insertion)

Definition
Inferior middle portion of the clavicle
Term

Subclavius

(Action)

Definition
Stabilization and protection of the sternoclavicular joing
Term

Subclavius

(Application)

Definition

Pulls the clavicle down the sternum

Dips

Term

Deltoid

(Origin)

Definition
Anterior lateral 1/3 of clavicle, lateral acromion, inferior scapular spine
Term

Deltoid

(Insertion)

Definition
Deltoid tuberosity of the humerus on the lateral aspect
Term

Deltoid

(Action)

Definition

Abduction

Flexion

Horizontal Abduction

IR

Extension

Horizontal Adduction

ER of shoulder joint

Term

Deltoid

(Innervation)

Definition
Axillary Nerve
Term

Deltoid

(Application)

Definition

Any movement of the humerus will involve the deltoid

Military Press

Abduction GREAT

Term

Coracobrachialis

(Origin)

Definition
Coracoid Process
Term

Coracobrachialis

(Insertion)

Definition
Middle of the medial border of the humeral shaft
Term

Coracobrachialis

(Action)

Definition

Flexion

Adduction

Horizontal Adduction of the GH joint

Term

Coracobrachialis

(Innervation)

Definition
Musculocutaneous
Term

Coracobrachialis

(Application)

Definition
Horizontal Adduction such as in bench pressing
Term

Supraspinatus

(Origin)

Definition
Medial 2/3 of the supraspinatus fossa of scapula
Term

Supraspinatus

(Insertion)

Definition
Superior portion of the greater tubercle of the humerus
Term

Supraspinatus

(Action)

Definition

Weak adduction of the GH  joint

GH stabilization

Term

Supraspinatus

(Innervation)

Definition
Suprascapular Nerve
Term

Supraspinatus

(Application)

Definition

Empty Can

Impingement

Most Injured RC

Term

Infraspinatus

(Origin)

Definition
Medial aspect of infraspinatus fossa just below scapular spine
Term

Infraspinatus

(Insertion)

Definition
Posterior on the greater tubercle of the humerus
Term

Infraspinatus

(Action)

Definition

External Rotation

Horizontal Abduction

Extension of GH joint

GH stabilization

Term

Infraspinatus

(Innervation)

Definition
Suprascapular Nerve
Term

Infraspinatus

(Application)

Definition
External Rotion especially with eccentric contraction
Term

Teres Minor

(Origin)

Definition
Posterior on the upper and middle aspect of the lateral border of scapula
Term

Teres Minor

(Insertion)

 

Definition
Posterior on the greater tubercle of the humerus just below the infraspinatus
Term

Teres Minor

(Action)

Definition
Same as infraspinatus
Term

Teres Minor

(Innervation)

Definition
Axillary Nerve
Term

Teres Minor

(Application)

Definition
Works wiht the infraspinatus
Term

Subscapularis

(Origin)

Definition
Entire anterior surface of the scapular fossa
Term

Subscapularis

(Insertion)

Definition
Lesser tubercle of the humerus
Term

Subscapularis

(Action)

Definition

Internal Rotation

Adduction

Extension of the GH joint

GH stabilization

Term

Subscapularis

(Innervation)

Definition
Upper and Lower Sibscapular Nerve
Term

Subscapularis

(Application)

Definition

Only anterior RC

Internal Rotation

Term

Teres Major

(Origin)

Definition
Posterior on the inferior 1/3 of the lateral border of the scapula just above the inferior angle
Term

Teres Major

(Insertion)

Definition
Medial lip of the intertubercular groove of the humerus
Term

Teres Major

(Action)

Definition

Extension

Internal Rotation

Adduction of the GH

 

Term

Teres Major

(Innervation)

Definition
Lower Subscapular Nerve
Term

Teres Major

(Application)

Definition

Works with the lats, pec major, and subscapularis in adduction, IR, Ext.

Little Helper

Term

Latissimus Dorsi

(Origin)

Definition

Posterior crest of the ilium

Back of the sacrum

And Spinous processes of the lumbar and lower 6 thoracic vertebrae - lower 3 ris - small area at inferior angle of scapula

Term

Latissimus Dorsi

(Insertion)

Definition

Medial side of the intertubercular groove ofo the humerus

 

Extremely important attachment site

Term

Latissimus Dorsi

(Action)

Definition

Adduction

Extension

IR

Horizontal abduction of the GH joint

Term

Latissimus Dorsi

(Innervation)

Definition
Thoracodorsal Nerve
Term

Latissimus Dorsi

(Application)

Definition

Strong muscle

Important Muscle

Lat pull downs

Chin ups

Angle of pull is very important aspect

Term

Pectoralis Major

(Origin)

Definition

Clavicular Head - medial half of the surface of the clavilce

Sternal Head - anterior surface of the costal cartilages of the 1st-6th ribs and adjacent sternum

Term

Pectoralis Major

(Insertion)

Definition

Flat tendon 2-3  inches wide to the outer ipo of the intertubercular humerus

 

Site of injuries

Term

Pectoralis Major

(Action)

Definition

IR

Adduction

Flexion

Abduction

horizontal adduction

adduction

Extension of the GH joint

Term

Pectoralis Major

(Innervation)

Definition

Upper - Lateral Pectoral Nerve

Lower - Medial Pectoral Nerve

Term

Pectoralis Major

(Application)

Definition

Large Muscle

Bench Press

Push Ups

Pull Ups

 

Major injury

 

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