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Lab E
Muscles operating on the humerus
19
Anatomy
Undergraduate 3
11/26/2016

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Cards

Term
What 3 muscles flex the humerus?
Definition
pectoralis major
coracobhachialis
deltoid
Term
what 2 muscles extend the humerus
Definition
latissimus dorsi
teres major
Term
what 2 muscles adduct the humerus
Definition
pectoralis major & latissimus dorsi
Term
what 6 muscles medially rotate the humerus
Definition
pectoralis major
latissimus dorsi
teres major
coracobrachialis
subscapularis
Term
What 2 muscles laterally rotate the humerus?
Definition
infraspinatus
Teres Minor
Term
What 3 muscles insert at the Humerus: Intertubercular Sulcus
Definition
Pectoralis Major
Latissimus Dorsi
Teres Major
(these muscles are medial rotators)
Term
These 3 muscles insert at the Humerus- Greater Tubercle
Definition
Supraspinatus
Infraspinatus
Teres Minor
Term
Pectoralis Major
Origin:
Insertion:
Definition
Origin: Clavicle, Sternum, and Ribs
Insertion: Humerus-Intertubercular Sulcus
Term
Latissimus Dorsi
Origin
Insertion
Definition
Origin: Vertebrae, Ribs, and Ilium
Insertion: Humerus: Intertubercular Sulcus
Term
Teres Major
Origin:
Insertion:
Definition
Origin: Scapula- Inferior angle
Insertion: Humerus- Intertubercular Sulcus
Term
Coracobrachialis
Origin:
Insertion:
Definition
Origin: Scapula- Coracoid Process
Insertion: Humerus-Shaft
Term
Supraspinatus
origin:
Insertion:
Definition
Origin: Scapula- Supraspinous fossa
Insertion: Humerus- Greater Tubercle
Term
Infraspinatus
Origin:
Insertion:
Definition
Origin: Scapula- infraspinous fossa
Insertion: Humerus Greater Tubercle
Term
Teres Minor
Origin:
Insertion:
Definition
Origin: Scapula-lateral border
Insertion: Humerus Greater Tubercle
Term
Subscapularis
Origin
Insertion
Definition
Origin: Scapula: Subscapular fossa
Insertion: Humerus-
Term
Deltoid
Origin
Insertion
Definition
Origin: Acromion & Spine of Scapula, Clavicle.
Insertion: Deltoid Tuberosity of Humerus.
Term
Action of anterior head of Deltoid-
Definition
Flex Humerus
Term
Action of Lateral Head of Deltoid
Definition
Abduct Humerus
Term
Action of Posterior Head of Deltoid.
Definition
Extend Humerus
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