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67 Cards in this Set
- Front
- Back
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Origin |
Less movable attachment of muscle Usually more proximal |
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Insertion |
More movable attachment of muscle Usually more distal |
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Agonist |
Prime mover |
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Antagonist |
Opposite of agonist |
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Synergist |
Muscle that assists agonist |
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Epicranius |
Moves scalp and eyebrows |
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Orbicularis Oculi |
Closes eye |
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Orbicularis Oris |
Purses lips |
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Temporalis |
Elevates and retracts mandible |
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Masseter |
Elevates and protracts mandible |
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Platysma |
Pulls lower lip inferiorly |
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Medial & Lateral Pterygoid |
Protraction and side to side movement of mandible |
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Muscles of the Eye |
Superior rectus Superior oblique Lateral rectus Inferior rectus Inferior oblique Medial rectus |
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Sternocleidomastoid |
Lateral flexion Flexes head Rotation of head (to the opposite side of the contacting muscle) |
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Scalenes (3) |
Synergist to sternocleidomastoid when flexing neck |
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Diaphragm |
Contraction causes inspiration |
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External intercostals |
Elevates ribs during inspiration |
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Internal intercostals |
Depresses ribs during expiration |
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Rectus abdominis |
Flexes vertebral column Compresses abdominal wall |
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External oblique |
Lateral -flexes, rotates Flexes vertebral column Compresses abdominal wall |
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Internal oblique |
Lateral - flexes, rotates Flexes vertebral column Compresses abdominal wall |
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Transverse abdominis |
Lateral flexes and rotates vertebral column Compresses abdominal wall |
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Stratus anterior |
Protracts and superiorly rotates the scapula |
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Erector spinae |
Maintains upright posture |
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Rhomboid minor & major |
Elevate and retract scapula |
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Trapezius |
Elevates, superiorly rotates, retracts, and depresses scapula |
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Trapezius |
Elevates, superiorly rotates, retracts, and depresses scapula |
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Pectoralis major |
Flexes, adducts, and medially rotates arm |
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Pectoralis minor |
Protracts and depresses scapula |
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Deltoid (Anterior) |
Flexes and medially rotates arm |
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Deltoid (Middle) |
Abducts arm |
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Deltoid (Posterior) |
Extends and laterally rotates arm |
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Latissimus dorsi |
Extends, adducts, and medially rotates arm |
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Rotator cuff muscles |
Supraspinatus Infraspinatus Teres minor Subscapularis |
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Supraspinatus |
Adducts arm |
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Infraspinatus |
Adducts and laterally rotates arm |
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Subscapularis |
Medially rotates arm |
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Teres minor |
Adducts and laterally rotates arm |
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Teres major |
Extends, adducts, and medially rotates arm |
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Biceps brachii |
Flexes arm and forearm Supinates forearm |
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Brachialis |
Flexes forearm |
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Triceps brachii |
Extends arm and forearm |
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Brachioradialis |
Flexes forearm |
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Iliacus |
Flexes thigh |
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Psoas |
Flexes thigh |
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Adductor magnus |
Adducts and flexes thigh |
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Adductor longus |
Adducts and flexes thigh |
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Gracilis |
Adducts and flexes thigh |
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Quadriceps (4 muscles) |
Rectus femoris Vastus lateralis Vastus medialis Vastus intermedius |
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Rectus femoris |
Flexes thigh, extends leg |
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Rectus femoris |
Flexes thigh, extends leg |
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Vastus lateralis |
Extends leg |
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Vastus medialis |
Extends leg |
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Vastus intermedius |
Extends leg |
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Sartorius |
Flexes and laterally rotates thigh Flexes leg |
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Gluteus maximus |
Extends & laterally rotates thigh |
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Gluteus medius |
Abducts & medially rotates thigh |
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Biceps femoris |
Extends thigh Flexes & laterally rotates leg |
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Semitendinosus |
Extends thigh Flexes and medially rotates leg |
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Semimembranosus |
Extends thigh Flexes and medially rotates leg |
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Tensor fasciae latae |
Abducts & medially rotates thigh |
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Tibialis anterior |
Dorsiflexion, inversion |
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Extensor digitorum longus |
Extends toes 2-5, dorsiflexion |
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Fibularis longus |
Eversion, plantarflexion |
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Gastrocnemius |
Plantarflexion, flexes leg |
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Soleus |
Plantarflexion |
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Soleus |
Plantarflexion |
