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action muscles
| Question | Answer |
|---|---|
| trapezius | elevate the limb |
| rhomboideus | -elevate the limb -pull dorsal scapula closer to body |
| serratus ventralis | support and elevate the limb |
| omotransversarius | -not fixed: pull limb cranially -fixed: pull head to side |
| brachicephalicus | -one: pull head to one side -both: arch neck -not fixed: pull limbs cranially |
| latissimus dorsi | -not fixed: draw limbs caudally -fixed: pull body cranially, extend the shoulder joint |
| superficial pectoral | adduct the limb |
| deep pectoral | -not fixed: adduct the limb, pull limb caudally -fixed: extend shoulder joint, pull body cranially (when limb is pulled cranially?) |
| supraspinatus | -lateral collateral ligament -extend the shoulder joint |
| infraspinatus | -lateral collateral ligament -flex the shoulder joint -abduct the limb at shoulder joint |
| deltoideus | flex the shoulder joint |
| subscapularis | -medial collateral ligament -adduct limb at shoulder joint |
| teres major | flex the shoulder joint |
| biceps brachii | -flex the elbow joint -exxtend the shoulder joint |
| brachialis | flex the elbow joint |
| tensor fascia antebrachii | extend the elbow joint |
| triceps brachii | -extend the elbow joint -long head flexes shoulder joint |
| extensor carpi radialis | extend the carpal joint |
| common digital extensor | extend carpal and digital joints of weight-bearing digits |
| lateral digital extensor | extend carpal joints of digits 3-5 |
| ulnaris lateralis | -flex carpal joints -abduct the manus at the carpal joints |
| abductor pollicus longus | -extend the carpal joints -abduct the first digit |
| flexor carpi ulnaris | flex the carpal joints |
| flexor carpi radialis | flex the carpal joints |
| superficial digital flexor | -flex the carpal joints -flex the metacarpophylangeal and proximal interphalangeal joints of digits 2-5 |
| deep digital flexor | -flex the carpal joints -flex the digital joints of all 5 digits |