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56 Cards in this Set
- Front
- Back
Muscle? Origin? Insertion? Action?
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Frontalis
a. Origin: Epicranial aponuerosis b. Insertion: Skin above eyes c. Action: raises eyebrows |
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Muscle? Origin? Insertion? Action?
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Zygomaticus major
a. Origin: zygomatic bone b. Insertion: superolateral edge of mouth c. Action: smile |
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Muscle? Origin? Insertion? Action?
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Zygomaticus minor
a. Origin: zygomatic bone b. Insertion: skin of superior lip c. Action: smile |
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Muscle? Origin? Insertion? Action?
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Risorius
a. Origin: Deep fascia of masseter muscle b. Insertion: skin at corner of mouth c. Action: Draws corner of mouth laterally |
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Muscle? Origin? Insertion? Action?
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Buccinator
a. Origin: alveolar process of maxilla and mandible b. Insertion: Orbicularis oris c. Action: Compress cheek "Fish Face" |
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Muscle? Origin? Insertion? Action?
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Levator labii superioris
a. Origin: anterior maxilla b. Insertion: skin of superior lip c. Action: raises upper lip (“snarl”) |
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Muscle? Origin? Insertion? Action?
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Depressor labii inferioris
a. Origin: Body of mandible b. Insertion: skin of lower lip c. Action: depresses lower lip |
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Muscle? Origin? Insertion? Action?
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Depressor anguli oris
a. Origin: Body of mandible b. Insertion: skin at inferior corner of mouth c. Action: frown |
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Muscle? Origin? Insertion? Action?
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Mentalis
a. Origin: mandible b. Insertion: skin of chin c. Action: protrudes lower lip |
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Muscle? Origin? Insertion? Action?
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Orbicularis oris
a. Origin: maxilla and mandible b. Insertion: skin surrounding mouth c. Action: closes and purses lips |
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Muscle? Origin? Insertion? Action?
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Orbicularis oculi
a. Origin: medial wall of orbit b. Insertion: skin surrounding eyelids c. Action: Closes eye |
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Muscle? Origin? Insertion? Action?
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Omohyoid
a. Origin: scapula b. Insertion: hyoid bone c. Action: depresses hyoid bone |
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Muscle? Origin? Insertion? Action?
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Stylohyoid
a. Origin: styloid process of temporal bone b. Insertion: hyoid bone c. Action: elevates hyoid bone |
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Muscle and Action?
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Erector spinae
a. Action: extends vertebral column |
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Muscle? Origin? Insertion? Action?
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Temporalis
a. Origin: temporal bone b. Insertion: coronoid of mandible c. Action: elevates and retracts mandible |
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Muscle? Origin? Insertion? Action?
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Masseter
a. Origin: zygomatic arch b. Insertion: coronoid and angle of mandible c. Action: elevates and protracts mandible |
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Muscle? Origin? Insertion? Action?
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Platysma (not visible on models)
a. Origin: fascia of deltoid and pectoralis muscles b. Insertion: Mandible and skin of cheek c. Action: pulls lower lip down and tenses skin of neck |
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Muscle? Origin? Insertion? Action?
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Digastric--anterior belly
a. Origin: mandible b. Insertion: hyoid bone c. Action: Elevates hyoid bone, depresses mandible |
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Muscle? Origin? Insertion? Action?
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Digastric--posterior belly
a. Origin: mastoid process of b. Insertion: hyoid bone c. Action: Elevates hyoid bone, depresses mandible |
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Muscle? Origin? Insertion? Action?
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Mylohyoid
a. Origin: Mandible b. Insertion: hyoid bone c. Action: elevates hyoid bone and floor of mouth |
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Muscle? Origin? Insertion? Action?
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Sternohyoid
a. Origin: clavicle and sternum b. Insertion: hyoid bone c. Action: depresses hyoid bone |
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Muscle? Origin? Insertion? Action (bilateral and unilateral)?
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Sternocleidomastoid muscle
a. Origin: sternum and clavicle b. Insertion: mastoid process c. Bilateral Action: flexes neck; d. Unilateral Action: lateral flexion and rotation of head to opposite side |
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Muscle? Origin? Insertion? Action?
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Splenius capitis
a. Origin: nuchal ligament b. Insertion: superior nuchal line and mastoid c. Action: turns head to same side; extends head |
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Muscle? Origin? Insertion? Action?
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Pectoralis major
a. Origin: clavicle and sternum b. Insertion: greater tubercle of humerus c. Action: arm flexion and adduction |
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Muscle? Origin? Insertion? Action?
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Pectoralis minor
a. Origin: ribs 3-5 b. Insertion: coracoid process c. Action: protracts and depresses scapula |
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Muscle? Origin? Insertion? Action?
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External intercostals
a. Origin: inferior border of upper rib b. Insertion: superior border of lower rib c. Action: elevate ribs (for inspiration) |
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Muscles? Origin? Insertion? Action?
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Scalenes
a. Origin: cervical vertebrae b. Insertion: 1st and 2nd ribs c. Action: elevate ribs 1 and 2 (for inspiration); flex head/neck |
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Muscles? Origin? Insertion? Action?
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Trapezius
a. Origin: superior nuchal line and nuchal ligament b. Insertion: clavicle and scapula (acromion and spine) c. Action: i. Superior fibers: elevate scapula ii. Middle fibers: retract scapula iii. Inferior fibers: depress scapula |
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Muscles? Origin? Insertion? Action?
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Latissimus dorsi
a. Origin: T7-T12 and iliac crest b. Insertion: intertubercular groove c. Action: arm extension and adduction |
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Muscles? Origin? Insertion? Action?
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Serratus anterior
a. Origin: ribs 1-8 b. Insertion: medial border of scapula below spine c. Action: protracts scapula |
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Muscles? Origin? Insertion? Action?
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Rhomboid major
a. Origin: T2-T5 spinous processes b. Insertion: medial border of scapula below spine c. Action: retracts (adducts) and elevates scapula |
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Muscles? Origin? Insertion? Action?
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Rhomboid minor
a. Origin: C7-T1 spinous processes b. Insertion: medial border of scapula above rhomboid major c. Action: same as rhomboid major |
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Muscle? Origin? Insertion? Action?
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Levator scapulae
a. Origin: C1-C4 transverse processes b. Insertion: superior medial border of scapula c. Action: elevates scapula |
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Muscle? Origin? Insertion? Action?
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Supraspinatus**
a. Origin: supraspinous fossa of scapula b. Insertion: greater tubercle of humerus c. Action: abducts arm |
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Muscle? Origin? Insertion? Action?
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Deltoid
a. Origin: acromial end of clavicle; acromion and spine of scapula b. Insertion: deltoid tuberosity of humerus c. Action: i. Anterior fibers: flex and medially rotate arm ii. Middle fibers: abduct arm iii. Posterior fibers: extend and laterally rotate arm |
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Muscle? Origin? Insertion? Action?
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Infraspinatus**
a. Origin: infraspinous fossa b. Insertion: greater tubercle of humerus c. Action: adducts and laterally rotates arm |
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Muscle? Origin? Insertion? Action?
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Teres minor**
a. Origin: lateral border of scapula b. Insertion: greater tubercle of humerus c. Action: adducts and laterally rotates arm |
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Muscle? Origin? Insertion? Action?
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Teres major
a. Origin: inferior lateral border of scapula b. Insertion: lesser tubercle of humerus c. Action: adducts, and medially rotates arm |
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Muscle? Origin? Insertion? Action?
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Subscapularis**
a. Origin: subscapular fossa of scapula b. Insertion: lesser tubercle of humerus c. Action: medially rotates arm |
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Muscle? Origin? Insertion? Action?
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Biceps brachii
a. Origin (long head): supraglenoid tubercle of scapula b. Origin (short head): coracoid process of scapula c. Insertion: radial tuberosity d. Action: flexes and supinates forearm |
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Muscle? Origin? Insertion? Action?
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Brachialis
a. Origin: distal humerus b. Insertion: coronoid process of ulna c. Action: flexes forearm |
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Muscle? Origin? Insertion? Action?
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Coracobrachialis
a. Origin: coracoid process of scapula b. Insertion: middle of humerus c. Action: adducts and flexes arm |
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Muscle? Origin? Insertion? Action?
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Triceps brachii
a. Origin: scapula and humerus b. Insertion: olecranon process of ulna c. Action: extends forearm; extends and adducts arm |
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Muscle? Origin? Insertion? Action?
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Brachioradialis
a. Origin: lateral distal humerus b. Insertion: styloid process of radius c. Action: flexes forearm |
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Muscle? Origin? Insertion? Action?
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Pronator teres
a. Origin: medial epicondyle of humerus b. Insertion: lateral radius c. Action: pronates forearm |
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Muscle? Origin? Insertion? Action?
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Flexor carpi radialis
a. Origin: medial epicondyle of humerus b. Insertion: base of metacarpals II and III c. Action: flexes wrist and abducts hand |
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Muscle? Origin? Insertion? Action?
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Palmaris longus
a. Origin: medial epicondyle of humerus b. Insertion: flexor retinaculum c. Action: weak wrist flexor |
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Muscle? Origin? Insertion? Action?
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Flexor carpi ulnaris
a. Origin: medial epicondyle of humerus b. Insertion: pisiform and hamate bones c. Action: flexes wrist and adducts hand |
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Muscle? Origin? Insertion? Action?
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Flexor digitorum superficialis
a. Origin: medial epicondyle of humerus b. Insertion: middle phalanges 2-5 c. Action: flexes digits 2-5 at MP and PIP joints |
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Muscle? Origin? Insertion? Action?
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Flexor pollicis longus
a. Origin: anterior radius b. Insertion: distal phalanx of pollex c. Action: flexes pollex at MP and IP joints |
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Muscle? Origin? Insertion? Action?
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Extensor carpi radialis longus
a. Origin: lateral humerus b. Insertion: base of metacarpal II c. Action: extends wrist and abducts hand |
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Muscle? Origin? Insertion? Action?
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Extensor carpi radialis brevis
a. Origin: lateral epicondyle of humerus b. Insertion: base of metacarpal III c. Action: same as ECRL above |
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Muscle? Origin? Insertion? Action?
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Extensor digitorum
a. Origin: lateral epicondyle of humerus b. Insertion: distal and middle phalanges 2-5 c. Action: extends 2-5 MP, PIP, and DIP joints |
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Muscle? Origin? Insertion? Action?
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Extensor carpi ulnaris
a. Origin: lateral epicondyle of humerus b. Insertion: base of metacarpal V c. Action: extends wrist and adducts hand |
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Muscle? Origin? Insertion? Action?
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Extensor digiti minimi
a. Origin: lateral epicondyle of humerus b. Insertion: proximal phalanx of pinky c. Action: extends MP, PIP, DIP joints of pinky |
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Muscle? Origin? Insertion? Action?
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Extensor pollicis brevis
a. Origin: radius b. Insertion: proximal phalanx I c. Action: extends pollex (MP and IP joints) |
