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NWHSU Mash GA1Q3Acti
NWHSU Mash GA1Q3 Action
| Question | Answer |
|---|---|
| Name the upward rotators of the scapula. (Be Specific) | Upper Trapezius, Lower Trapezius and Serratus Anterior |
| Name the downward rotators of the scapula. | Levator Scapula, Rhomboids, Pectoralis minor, Latissimus Dorsi |
| an ANTERIOR muscle which causes downward rotation of the scapula | Pectoralis Minor |
| Besides elevation, the action of the levator scapulae. | Medial Downward Rotation of Scapula |
| Name the elevators of the scapula. | Levator Scapula & Upper Trapezius |
| Action of Levator Scapulae. | Elevation, Medial Downward Rotation of the Scapula |
| Name the depressors of the scapula | Pectoralis Minor, Serratus Anterior, Lower Trapezius, Latissimus Dorsi |
| Action of LOWER trapezius. | Depression & Upward rotation of scapula |
| Action of Rhomboid muscles. | Retraction and downward rotation of the scapula |
| a retractor of the scapula innervated by the dorsal scapular nerve | rhomboids |
| Name two muscles which protract the scapula. | Pectoralis Minor, Serratus Anterior |
| Action of serratus ANTERIOR muscle | Protraction, upward rotation of scapular, stabilizes scapula against chest wall |
| Action of the serratus POSTERIOR superior | Elevation of ribs to increase thoracic cavity during inspiration |
| Action of serratus POSTERIOR inferior. | Pulls ribs Outward Conteracting the Inward Pull of the Diaphragm During Expiration |
| Name the extensors of the humerus. | Pectoralis Major(sternal head), Latissimus Dorsi, Teres Major, Teres Minor, Posterior Deltoid, Triceps Brachii (long head), Infraspinatus |
| Name the abductors of the humerus. | Supraspinatus, Middle Deltoid |
| Name the adductors of the humerus | Pectoralis Major, Coracobrachialis, Latissimus Dorsi, Teres Major, Subscapularis |
| Name the HORIZONTAL aBductors of the humerus. | posterior deltoid |
| Name the HORIZONTAL adductors of the humerus. | Anterior Deltoid, Pectoralis Major |
| Name the medial rotators of the humerus. | Pectoralis Major, Anterior Deltoid, Latissimus Dorsi, Teres Major, Subscapularis |
| Name the lateral rotators of the humerus | Infraspinatus, Teres Minor, Posterior Deltoid |
| Action of infraspinatus muscle. | Lateral Rotation & Extension of Humerus |
| Action of subscapularis. | Medial Rotation of Humerus, Adduction of Humerus |
| Action of Pectoralis Major Muscle | Adduction, Horizontal adduction, Medial rotation of humerus, clavicular head: flexion of humerus, sternocostal head: extension of humerus, assists anterior tilt of scapula |
| Action of pectoralis major m., sternal head and clavicular head | extension of humerus, flexion of humerus |
| action of corcobrachialis | flexion and adduction of humerus |
| Besides adduction, the action of the coracobrachialis. | Flexion of the Humerus |
| Action of Latissimus dorsi. | Adduction and Extension of the Humerus, Downward rotation of Scapula, assists Depression of Scapula |
| Action of teres MAJOR muscle. | Adduction, Extension, Medial Rotation of the Humerus |
| muscle that acts as the PRIMARY fixator during contraction of the deltoid~ m. | trapezoid |
| muscle that acts as the PRIMARY fixator during contraction of the teres major m. | rhomboids |
| Action of the biceps brachii. | Supination of forearm, flexion of elbow, flexion of humerus (short head) |
| Besides the biceps brachii, name the flexors of the elbow. | Brachialis, Bracioradialis, Pronator Teres |
| actions of long head of triceps brachii | extention of humerus and elbow |
| action of the triceps brachii | Extention of elbow joint, long head: extention of humerus |
| Name the extensors of the elbow. | Triceps Brachii, Anconeous - Assists |
| action of anconeus | extension of elbow |
| DEEP muscle that inserts on the distal anterior radius | Pronator Quadratus |
| Name the DEEPEST pronator of the forearm. | Pronator Quadratus |
| Name the pronators of the forearm. | Pronator Teres & Pronator Quadratus |
| two muscles which rotate the radius so palm faces anteriorly | supinator, biceps brachii |
| Name the abductors of the wrist. | Flexor Carpi Radialis, Extensor Carpi Radialis Longus |
| Name the adductors of the wrist. | Flexor Carpi Ulnaris, Extensor Carpi Ulnaris |
| Name the flexors of the wrist. | Flexor Carpi Radialis, Flexor Carpi Ulnaris, Palmaris Longus, Flexor digitorum superficialis, flexor digitorum profundus |
| Name the extensors of the wrist. | Extensor Carpi Radialis Longus, Extensor Carpi Radialis Brevis, Extensor Carpi Ulnaris |
| Action of extensor indicis. BE SPECIFIC | Extension of the index finger at MP joint, assists extension of wrist |
| Action of extensor carpi ulnaris. | Extends & Adducts the wrist |
| Action of palmaris brevis | Tenses skin on the ulnar side, aids grip |
| action of extensor digitorum | extention of wrist and extention of 4 fingers at interphalangeal and metacarpal joints (IP, MP) |
| What specific joints are extended by extensor indicis. | DIP and PIP -extention of index finger at MP and IP Joints |
| What is the action of the extensor digitorum? Be VERY Specific! | Extends the 4 Fingers at MP Joints, Assists extension of wrist |
| muscle that flexs the DIP joints of four fingers | flexor digitorum profunda |
| Action of lumberical muscles | flexion of MP joint, extension of IP joints |
| The ___interossei ABduct the ___digits | dorsal, 2-4 |
| The ___interossei adduct the ___digits | palmar, 2-5 |
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AnatomyMash
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