Muscle Actions
About this set
Created by:
jaseeyum09 on March 22, 2012
Subjects:
human anatomy bio 260 muscles action
Description:
bio 260 at swcc
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66 terms
Terms | Definitions |
|---|---|
 Obicularis Oris | close and protrudes lips |
| Obicularis Oculi | blinking,squinting,forceful closing of eyes |
| Platysma | tenses skin of neck, depresses mandible |
| Masseter | elevates mandible |
| Temporalis | elevates and retracts mandible |
| Frontalis | raises the eyebrows,wrinkles forehead skin |
| Sternocleidomastoid | both:flex cervical vertebral column alone:rotates head to the opposite sides |
| Splenius Capitis | extend the neck |
| Trapezius | Elevates, depresses,rotates, adducts scapula |
| Biceps Brachii | flexes elbow and supinates forearm |
| Brachialis | flexes forearm at elbow |
| Brachioradialis | flexes forearm and elbow |
| Triceps Brachii | extend the elbow and adduct shoulder |
| Pronator teres | pronates forearm |
| Supinator | supinates forearm |
| Flexor carpi ulnaris | flexes and ADducts hand/wrist |
| Flexor carpi radialis | flexes and ABducts hand/wrist |
| Extensor carpi ulnaris | extend and ADducts hand/wrist |
| Extensor carpi radialis (longus,brevis) | extend and ABduct hand/wrist |
| Palmaris Longus | flexes the hand/wrist |
| Extensor Digitorum Communis | extend finger joints and wrist |
| Coracobrachialis | flexes and adducts the shoulder |
| Pectoralis Major | flexes,ADducts and medially rotates shoulder |
| Pectoralis Minor | depresses and pulls scapula anteriorly |
| Serratus Anterior | draws scapula forward along thoracic wall,rotates scapula |
| Iliopsoas | flexes hips |
| Rectus Abdominis | flexes vertebral column, compresses abdominal contents |
| External/Internal Abdominal Oblique | compresses abdominal contents, assist in flexion and rotation of vertebral column |
| Transverse Abdominis | compresses abdomen |
| Quadratum lumborum | depresses ribs |
| Errector spinae group | extend neck(cervicis) and extend vertebral column(thoracis) |
| External Intercostalis | elevate and expand rib cage |
| Internal Intercostalis | depress rib cage |
| Xiphihumeralis | adducts and rotates the forelimb |
| Lavator Scapula | elevates scapula |
| Rhomboid Major and Minor | ADducts and rotates scapula |
| Deltoid | ABducts;flexes and medially rotates;extend and laterally rotates arm |
| Supraspinatus | arm abduction |
| Infraspinatus | laterally rotates shoulder/arm |
| Subscapularis | medially rotates shoulder/arm |
| Lattisimus Dorsi | extend,ADducts, and medially rotates shoulder |
| Teres Major | adducts,extends and medially rotates arm |
| Teres Minor | laterally rotates arm |
| Tensor Fascia latae | laterally support the knee; abduct and medially rotates the hips |
| Sartorius | flexes and laterally rotates thigh;flexes and medially rotates leg at the knee |
| Rectus Femoris | extend the knee and flexes the hips (one of quadtriceps femoris) |
| Vastus Lateralis/Medialis/intermedius | (quadtriceps femoris with Rectus femoris) extend the knee and flexes hips |
| Gracilis | Adducts thigh at hip; flexes leg at knee |
| Semitendinosus/Semimembranosus | flexes the knee; extend and medially rotates the hip |
| Adductor longus/brevis | adducts and flexes the hip |
| Adductor magnus | whole muscle produce adduction of the hip |
| Pectineus | flexes and adducts thigh |
| Biceps femoris | Extend and laterally rotates the hip |
| Gluteus Maximus | extend and laterally rotates hip |
| Gleuteus medius | ABducts thigh at hip |
| Popliteus | medially rotates tibia |
| Tibialis Anterior | dorsiflexes and inverts the foot;extend toes |
| Tibialis Posterior | plantar flexes and inverts foot |
| Extensor hallucis longus | dorsiflexes foot,extends the joints of big toe |
| Extensor digitorum longus | dorsiflexes foot and extend toes |
| Flexor hallucis Longus | plantar flexes and inverts foot; flexes great toe |
| Flexor digitorum longus | plantar flexes and inverts foot; flexes great toe |
| Gastrocnemius | plantar flexes the foot, weak flexor of leg at knee |
| Soleus | plantar flexes the foot |
| Peroneus(fibularis) longus/brevis | plantar flexes and everts foot |
| Plantaris | plantar flexion at ankle;flexion at knee |
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