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Shoulder Muscles
Origins and insertions- Shoulder joint
13
Anatomy
Undergraduate 2
09/30/2013

Additional Anatomy Flashcards

 


 

Cards

Term

Petoralus Major

 

Upper

Definition

O- Medial half of the anterior surface of the clavicle

 

I- Flat tendon 2 or 3 inches wid to the lateral lip of intertubercular groove or humerus

 

M- Int Rot, Horiz rot, diagonal add, flexion, abd

Term

Pectoralis major

 

lower fibers

 

Definition

O- Anterior surface of costal cartilages of the first six ribs and adjoining portion of sternum

 

I- Flat tendon 2 or 3 inces wide to the lateral lip of intertuberclular groove of humerus

 

M- int rot, horiz add, diag add, ext

add 

Term
Subscapularis
Definition

O- entire anterior surface of the subacapular fossa

 

I- lesser tubercle of humerus

 

M- int rot, add, ext

Term
Coracobrachialis
Definition

O- coracoid process of scapula

 

I- Middle of medial border of humeral shaft

 

M- horiz add, diag add

Term

Deltoid

 

anterior

Definition

O- anterior lateral third of clavicle

 

I- Deltoid tuberosity on lateral humerus

 

M- abd, flex, horiz add, intern rot, diag add

Term

 

Deltoid

 

Middle fibers

Definition

O- Lateral scpect of acromion

 

I- Deltoid tuberosity on lateral humerus

 

abd, hoiz abd

Term

 

Deltoid

 

posterior

 

Definition

O- Inferior edge of spine of acapula

 

I- Deltoid tuberosity on lateral humerus

 

M- abd, horiz abd, ext rot, diag abd

Term

 

 

Suprasminatus

Definition

O- Medial 2/3rds of supraspinuos fossa

 

I- Superiouly on greater tubercle of humerus

 

M- abd

Term

 

 

Latissimus Dorsi

Definition

O- Posterior crest of ilium, back of sacrum and spinous processes of the lumbar spine and lower 6 thoracic vertebrae, slips form lower three ribs

 

I- medial side of intertubercular groove of humerus, just anterior to the insertion of the teres major

 

M- ext, add, int rot, horiz abd

Term

 

Teres

 

Major

Definition

O- Posteriorly on inferior third of lateral border of scapula and just superior to inferior angle

 

I- Medial lip of intertubercular groove of humerus, just posterior to the insertion of the latissimus dorsi

 

M- ext, add, int rot

Term

 

Infraspinatus

Definition

O- infraspinous fossa just below spin of scapula

 

I- posteriorly on greater tubercle of humerus

 

M- ext rot horiz abd, ext, diag abd

Term

 

Teres

 

Minor

Definition

O- Posteriorly on upper and middle aspect of lateral border of scapula

 

I- Posteriorly on greater tubercle of humerus

 

M- ext rot, horiz abd, ext, diag abd

Term

 

what are the muscles of the rotator cuff?

Definition

S I T S

 

Subscapularis

 

Infraspinatus

 

Teres Minor

 

Supraspinatus

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