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Muscles
Identify the muscle and note their action
| Muscle | Action |
|---|---|
| Pectoantebrachialis | Adduction of forelimb |
| Pectoralis major | Adduction of forelimb |
| Pectoralis minor | Adduction of forelimb |
| Xiphihumeralis | Adduction of forelimb |
| External oblique | Abdominal compression |
| Internal oblique | Abdominal compression |
| Transversus abdominus | Abdominal compression |
| Rectus abdominus | Abdominal compression |
| Serratus ventralis | Supports scapula, Adducts scapula |
| Scalenes | Bends neck, Pulls ribs cranially |
| Intercostal muscles | Move ribs |
| Clavotrapezius | Extends humerus |
| Levator scapulae ventralis | Stabilizes scapulae |
| Clavobrachialis (clavodeltoid) | Flexes elbow |
| Acromiotrapezius | Adduct, Stabilizes scapula |
| Spinotrapezius | Pulls scapula caudo-dorsally |
| Latissimus dorsi | Pulls forelimb caudo-dorsally |
| Sternomastoid | Turns head, Bends neck |
| Sternohyoid | Retracts hyoid |
| Sternohyroid | Retracts larnyx |
| Digastric | Depresses mandible |
| Rhomboideus capitis | Rotates scapula and pulls cranially |
| Rhomboideus | Adducts scapulae |
| Supraspinatus | Protraction of humerus |
| Infraspinatus | Rotates humerus laterally |
| Teres major | Flexes and rotates humerus medially |
| Acromiodeltoid | Flexes humerus and rotates laterally |
| Spinodeltoid | Synergistic with acromiodeltoid |
| Subscapularis | Adducts humerus |
| Epitrochlearis | Helps extend forearm |
| Biceps brachii | Flexes forearm |
| Brachialis | Flexes forearm with biceps |
| Triceps brachii (long head, lateral head, medial head (find by transecting lateral head)) | Extends forearm |
| Brachioradialis | Supinates paw |
| Extensor carpi radialis longus | Extends carpus |
| Extensor carpi radialis brevis | Extends digits |
| Extensor digitorum communis | Common digital extensor |
| Extensor digitorum lateralis | Lateral digital extensor |
| Extensor carpi ulnaris | Extends carpus |
| Flexor carpi ulnaris | Flexes carpus |
| Flexor digitorum superficialis (2 heads) | Flexes digits |
| Flexor carpi radialis | Flexes 2nd and 3rd metacarpals |
| Palmaris longus | Flexes digits |
| Sartorius | Adducts femur, Extends shank |
| Gracilis | Adducts and retracts leg |
| Biceps femoris | Abducts thigh, Flexes shank |
| Semitendinosus | Flexes shank |
| Semimembranosus | Extends thigh |
| Adductor femoris | Adducts thigh |
| Adductor longus | Adducts thigh |
| Pectineus | Adducts thigh |
| Tensor fascia lata | Tenses fascia lata, Extends shank |
| Quadriceps: Vastus medialis, Rectus femoris, Vastus lateralis, Vastus intermedius | Extends shank |
| Tibialis cranialis | Flexes paw |
| Extensor digitorum longus | Extends digits |
| Popliteus | Flexes and medially rotates leg |
| Gastrocnemius | Extends foot |
| Plantaris | Helps extend foot |
| Soleus | Helps extend foot |
| Gluteus maximus | Abducts thigh |
| Gluteus medius | Abducts thigh |