Muscles 7-2 Flashcards
Deltoideus Muscle
O- Spine of Scapula
I- Proximal Humerus
A- Flexes Shoulder
Infraspinatus Muscle
O- Infraspinous process of the scapula
I- Greater Tubercle of the Humerus
A- Flexes shoulder and abducts the forelimb
Supraspinatus Muscle
O- Supraspinous fossa of the scapula
I- Greater Tubercle of the Humerus
A- Extends the shoulder
Subscapularis Muscle
O- Subscapular fossa of the Scapula
I- Lessor Tubercle of the Humerus
A- Adducts the forelimb/rotates the limb medially
Triceps Brachii
O- Scapula (Long head) and Proximal Humerus (Lateral and Medial heads)
I- Olceranon process of the Ulna
A- Extends elbow and flexes shoulder
Biceps Brachii
O- Scapula
I- Proximal Ulna and Radius
A- Flexes Elbow and extends shoulder
Brachiallis
O- Proximal Humerus
I- Proximal Ulna and radius
A- Flexes elbow
Extensor Carpi Radialis
O- Distal Lateral Humerus
I- Proximal metacarpals II and III
A- Extends Carpus
Common Digital Extensor
O- Lateral epicondyle of the humerus
I- Dorsal digital phalanges of digits II, III, IV, V
A- Extends Carpus and Digits
Lateral Digital Extensor
O- Lateral epicondyle of the humerus
I- Proximal digits II, III, IV, and V
A- Extends Carpus and the Digits
Extensor Carpi Ulanaris
O- Lateral epicondyle of the humerus
I- Lateral Metacarpal V and Acessory Carpal bone
A- Don’t need to know because it’s debateable
Flexor Carpi Radialis
O- Medial epicondyle of the Humerus
I- Palamar aspect of Metacarpal II and III
A- Flexes Carpus
Flexor Carpi Ulnaris
O- Medial epicondyle of humerus and olecranon process
I- Accessory Carpal bone
A- Flexes Carpus
Superficial Digital Flexor
O- Medial epicondyle of the Humerus
I- Palamar middle Phalanges
A- Flexes Carpus and Digits
Deep Digital Flexor
O- Medial epicondyle of the Humerus and proximal radius and Ulna
I- Palmar distal phalanges II-V
A- Flexes Carpus and Digits
