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Forelimb Muscle Actions
actions of forelimb muscles (dog and cat)
36
Anatomy
Professional
08/18/2010

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Cards

Term
Superficial pectorals
Definition
Adduction
Prevention of abduction (wt bearing)
Term
Deep pectorals
Definition
Advance trunk cranially and extend shoulder
Draw limb caudally and flex shoulder when not bearing weight
Adduction
Term
Brachiocephalicus
Definition
Advance limb
Extend shoulder
Draw head/neck to side
Term
Sternocephalicus
Definition
Draw head/neck to side
Term
Sternohyoideus
Definition
Pull tongue/larynx caudally
Term
Sternothyroideus
Definition
Pull tongue/larynx caudally
Term
Omotransversarius
Definition
Advance limb
Flex neck laterally
Extend shoulder
Term
Trapezius
Definition
Elevate limb
Abduction
Term
Rhomboideus
Definition
Elevate limb
Draw scapula against trunk
Term
Latissimus dorsi
Definition
Draw free limb caudally (digging)
Flex shoulder
Term
Serratus ventralis
Definition
Support trunk
Depress scapula
Term
Infraspinatus
Definition
Extend or flex shoulder
Abduct shoulder
Rotate arm laterally
Term
Supraspinatus
Definition
Extend/stabilize shoulder
Term
Deltoideus
Definition
Flex shoulder
Term
Teres minor
Definition
Flex shoulder
Rotate arm laterally
Term
Teres major
Definition
Flex shoulder
Rotate arm medially
Term
Coracobrachialis
Definition
Adduct shoulder
Extend/stabilize shoulder
Term
Subscapularis
Definition
Adduct shoulder
Extend/stabilize shoulder
Rotate arm medially
Term
Tensor fasciae antebrachii
Definition
Extend elbow
Term
Triceps brachii
Definition
Extend elbow
Long head also helps flex shoulder
Term
Anconeus
Definition
Extend elbow
Term
Biceps brachii
Definition
Flex elbow
Extend shoulder
Term
Brachialis
Definition
Flex elbow
Term
Extensor carpi radialis
Definition
Extend carpus
Term
Common digital extensor
Definition
Extend digits II-V
Extend carpus
Term
Lateral digital extensor
Definition
Extend digits III-V
Extend carpus
Term
Ulnaris lateralis
Definition
Flex carpus
Abduct carpus
Term
Abductor pollicis longus
Definition
Abduct pollex (digit I)
Extend carpus
Term
Supinator
Definition
Supinate limb
Flex elbow
Term
Pronator teres
Definition
Pronate limb
Flex elbow
Term
Flexor carpi radialis
Definition
Flex carpus
Term
Superficial digital flexor
Definition
Flex carpus
Flex digits II-V (except distal interphalangeal joints)
Term
Flexor carpi ulnaris
Definition
Flex carpus
Term
Deep digital flexor
Definition
Flex carpus
Flex all joints of digits
Term
Pronator quadratus
Definition
Pronate paw
Term
Interosseus muscles
Definition
Flex metacarpalphalangeal joints
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