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AP Muscle Wrksht II
A&P Muscle Wrksht II
| Question | Answer |
|---|---|
| Trapezius | Attachments: occipital, cervical and thoracic vertebrae,clavicle, scapula; Action: rotates, pulls, and raises scapula |
| Rhomboids | Attachments: cervical and upper thoracic vertebrae, scapula; Action: retracts, elevates, rotates scapula |
| Levator scapula | Attachments: cervical vertebrae and scapula; Action: elevates scapula |
| Serratus anterior | Attachments: upper ribs, scapula; Action: pulls scapula anteriorlly and downward |
| Pectoralis minor | Attachments: upper ribs, scapula; Action: pulls scapula forward and downward, raises ribs |
| Supraspinatus | Attachments: scapula, humerus; Action: abducts the arm |
| Infraspinatus | Attachments: scapula, humerus; Action: rotates the arm laterally |
| Teres minor | Attachments: scapula, humerus; Action: rotates the arm laterally |
| Subscapularis | Attachments: scapula, humerus; Action: rotates arm medially |
| Pectoralis major | Attachments: clavicle, sternum, costal cartilage of upper ribs, humerus; Action: flexes, adducts, and rotates arm medially. |
| Deltoid | Attachments: scapula, clavicle, humerus; Action: abducts, extends, and flexes arm |
| Latissimus dorsi | Attachments: illiac crest, lower ribs, and sacral, lumbar, and thoracic vertebrae, humerus; Action: extends, adducts, rotates arm medially, pulls shoulder downward and back |
| Teres major | Attachments: scapula, humerus; Action: extends, adducts, and rotates arm medially |
| Biceps brachii | Attachments: scapula, radius; Action: flexes elbow and rotates hand laterally |
| Brachialis | Attachments: humerus, ulna; Action: flexes elbow |
| Brachioradialis | Attachments: humerus, radius; Action: flexes elbow |
| Triceps brachii | Attachments: humerus, ulna; Action: extends elbow |
| Pronator teres | Attachments: humerus, ulna, radius; Action: rotates forearm medially and pronates hand |
| Extensor carpi radialis | Attachments: humerus, 2nd and 3rd metacarpals; Action: extends wrist and abducts hand |
| Extensor digitorum | Attachments: humerus, 2-5 phalanges; Action: extends fingers |
| Extenor carpi ulnaris | Attachments: humerus, 5th metacarpal; Action: extends wrist and adducts hand |
| Palmaris longus | Attachments: humerus, fascia of palm; Action: flexes wrist |
| Flexor carpi ulnaris | Attachments: humerus, carpals, and metacarpals Action: flexes wrist and adducts hand |
| Flexor digitorum superficialis | Attachments: humerus, ulna, radius, tendons of fingers; Action: flexes fingers and wrist |
| Flexor carpi radialis | Attachments: humerus, 2nd and 3rd metacarpals Action: flexes wrist and abducts hand |