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Musculoskeletal: Muscle Actions
| Question | Answer |
|---|---|
| what muscles depress the jaw? (3) | lateral pterygoid suprahyoid infrahyoid |
| what muscles elevate the jaw? (3) | temporalis masseter medial pterygoid |
| what muscles protract the jaw? (3) | masseter medial pterygoid lateral pterygoid |
| what muscles retract the jaw? (3) | temporalis masseter digastric |
| what muscles allow side-to side motion of the jaw? (4) | medial pterygoid lateral pterygoid masseter temporalis |
| what muscles flex the cervical spine? (3) | sternocleidomastoid longus colli scalenes |
| what muscles extend the cervical spine? (6) | splenius cervicis semispinalis cervicis iliocostalis cervicis longissimus cervicis multifidus trapezius |
| what muscles rotate or laterally flex the cervical spine? (7) | sternocleidomastoid splenius cervicis iliocostalis cervicis longissimus cervicis multifidus scalenes levator scapulae |
| what muscles flex the thoracic and lumbar spine? (3) | rectus abdominus internal oblique external oblique |
| what muscles extend the thoracic and lumbar spine? (3) | erector spinae quadratus lumborum multifidus |
| what muscles rotate or laterally flex the thoracic and lumbar spine? (8) | psoas major quadratus lumborum internal oblique external oblique multifidus longissimus thoracis iliocostalis thoracis rotatores |
| what muscles elevate the scapula? (2) | upper trapezius levator scapulae |
| what muscles depress the scapula? (4) | latissimus dorsi pectoralis major pectoralis minor lower trapezius |
| what muscles protract the scapula? (2) | serratus anterior pectoralis minor |
| what muscles retract the scapula? (2) | middle trapezius rhomboids |
| what muscles upwardly rotate the scapula? (3) | upper trapezius lower trapezius serratus anterior |
| what muscles downwardly rotate the scapula? (3) | rhomboids levator scapulae pectoralis minor |
| what muscles flex the shoulder? (4) | anterior deltoid coracobrachialis pectoralis major (clavicular head) biceps brachii |
| what muscles extend the shoulder? (4) | latissimus dorsi teres major posterior deltoid triceps brachii (long head) |
| what muscles abduct the shoulder? (2) | middle deltoid supraspinatus |
| what muscles adduct the shoulder? (3) | pectoralis major latissimus dorsi teres major |
| what muscles horizontally abduct the shoulder? (3) | posterior deltoid infraspinatus teres minor |
| what muscles horizontally adduct the shoulder? (2) | anterior deltoid pectoralis major |
| what muscles medially rotate the shoulder? (5) | subscapularis teres major pectoralis major latissimus dorsi anterior deltoid |
| what muscles laterally rotate the shoulder? (3) | teres minor infraspinatus posterior deltoid |
| what muscles flex the elbow? (3) | biceps brachii brachialis brachioradialis |
| what muscles extend the elbow? (2) | triceps brachii anconeus |
| what muscles supinate the wrist? (2) | biceps brachii supinator |
| what muscles pronate the wrist? (2) | pronator teres pronator quadratus |
| what muscles flex the wrist? (3) | flexor carpi radialis flexor carpi ulnaris palmaris longus |
| what muscles extend the wrist? (3) | extensor carpi radialis longus extensor carpi radialis brevis extensor carpi ulnaris |
| what muscles radially deviate the wrist? (5) | extensor carpi radialis longus extensor carpi radialis brevis flexor carpi radialis extensor pollicis longus extensor pollicis brevis |
| what muscles ulnarly deviate the wrist? (2) | extensor carpi ulnaris flexor carpi ulnaris |
| what muscles flex the hip? (4) | iliopsoas sartorius rectus femoris pectineus |
| what muscles extend the hip? (5) | gluteus maximus gluteus medius semitendinosus semimembranosus biceps femoris |
| what muscles abduct the hip? (5) | gluteus minimus gluteus medius piriformis obturator internus tensor fasciae latae |
| what muscles adduct the hip? (4) | adductor magnus adductor longus adductor brevis gracilis |
| what muscles medially rotate the hip? (5) | gluteus minimus gluteus medius pectineus adductor longus tensor fasciae latae |
| what muscles laterally rotate the hip? (6) | gluteus maximus obturator externus obturator internus piriformis gemelli sartorius |
| what muscles flex the knee? (4) | semitendinosus semimembranosus biceps femoris sartorius |
| what muscles extend the knee? (4) | rectus femoris vastus lateralis vastus medialis vastus intermedius |
| what muscles plantarflex the ankle? (7) | tibialis posterior gastrocnemius soleus peroneus longus peroneus brevis plantaris flexor hallucis |
| what muscles dorsiflex the ankle? (4) | tibialis anterior extensor hallucis longus extensor digitorum longus peroneus tertius |
| what muscles invert the ankle? (3) | tibialis posterior tibialis anterior flexor digitorum longus |
| what muscles evert the ankle? (3) | peroneus longus peroneus brevis peroneus tertius |
Created by:
saram6450
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