Shared Flashcard Set

Details

Muscles of the Shoulder Region
Origin, Insertion, Innervation, & Action
22
Anatomy
Professional
08/23/2009

Additional Anatomy Flashcards

 


 

Cards

Term

Deltoid

 

(origin and insertion)

Definition

Origin: lateral third of the clavicle, acromion, and spine of the scapula

 

Insertion: deltoid tuberosity of humerus

Term

Deltoid

 

(innervation)

Definition
axillary nerve
Term

Deltoid

 

(action)

Definition
abducts, adducts, flexes, extends, and rotates the arm medially and laterally
Term

Supraspinatus muscle

 

(origin and insertion)

Definition

origin: supraspinous fossa of scapula

 

insertion: superior facet of the greater tubercle of the humerus

Term

Supraspinatus Muscle

 

(innervation)

Definition
suprascapular nerve
Term
Supraspinatus muscle
Definition
action: abducts arm
Term

Infraspinatus muscle

 

(origin and insertion)

Definition

origin: infraspinous fossa

 

insertion: middle facet of the greater tubercle of the humerus

Term

Infraspinatus muscle

 

(innervation)

Definition
suprascapular nerve
Term

infraspinatus muscle 

 

(action)

Definition
rotates arm laterally
Term

subscapularis muscle

 

(origin and insertion)

Definition

Origin: subscapular fossa of the scapula

 

Insertion: lesser tubercle of the humerus

Term

Subscapularis muscle

 

(innervation)

Definition
upper and lower subscapular nerves
Term

subscapularis muscle

 

(action)

Definition
adducts and rotates arm medially
Term

Teres Major

 

(origin and insertion)

Definition

origin: dorsal surface of the inferior angle of the scapula

 

Insertion: medial lip of the intertubercular sulcus of the humerus

 

Term

Teres Major

 

(innervation)

Definition
lower subscapular nerve
Term

Teres Major

 

(action)

Definition
adducts and rotates arm medially
Term

Teres Minor

 

(origin and insertion)

Definition

Origin: upper portion of the lateral border of the scapula

 

Insertion: lower facet of the greater tubercle of the humerus

Term

Teres Minor

 

(innervation)

Definition
axillary nerve
Term

Teres Minor

 

(action)

Definition
rotates the arm laterally
Term

Latissimus dorsi

 

(origin and insertion)

Definition

origin: spines of T7-T12 thoracolumbar fascia, iliac crest, and ribs 9-12

 

insertion: floor of the bicipital groove of the humers

Term

latissimus dorsi

 

(innervation)

Definition
thoracodorsal nerve
Term

latissimus dorsi

 

(action)

Definition
adducts, extends, and rotates arm medially
Supporting users have an ad free experience!