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33 Cards in this Set
- Front
- Back
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Temporalis
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Origin: Temporal bone
Action: Elevates and retracts mandible Insertion: Coronoid process and ramus of the mandible |
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Masseter
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Origin: Zygomatic arch
Action: Elevates mandible Insertion: Mandible |
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Orbicularis Oculi
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Origin: Medial wall of orbit, frontal and maxillar bones
Action: Blinking, squinting, closing eyelids Insertion: Circular path around orbit |
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Orbicularis orbis
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Origin: Fibrous tissue surrounding the opening of the mouth
Action: Kissing, compressing lips, forms lips during speech Insertion: Skin at the corners of the mouth |
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Levator palpebrae superioris
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Origin: Root of orbit
Action: Opens eyelid Insertion: Skin of upper eyelids |
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Platysma
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Origin: Pectoralis major and deltoid fascia
Action: Depresses mandible, draws mouth downward, tightens neck skin Insertion: Mandible, muscles around mouth, skin on lower face |
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Sternocleidomastoid
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Origin: Clavicle and manubrium of sternum
Action: Flexes head and rotates head laterally Insertion: Temporal bone mastoid process |
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Scalenes
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Origin: Transverse process of C1-C7
Action: Elevates upper ribs, flexes head, rotates head side to side Insertion: First and second ribs |
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Digastric
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Origin: Temporal bone, mandible
Action: Depresses mandible Insertion: Hyoid bone |
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Stylohyoid
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Origin: Temporal bone styloid process
Action: Elevates hyoid bone Insertion: Hyoid bone |
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Mylohyoid
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Origin: Mandible
Action: Elevates hyoid bone and floor of the mouth in swallowing, depresses mandible Insertion: Hyoid bone |
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Sternohyoid
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Origin: Clavicle and manubrium of sternum
Action: Depresses hyoid bone Insertion: Hyoid bone |
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Sternothyroid
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Origin: Sternum
Action: Depresses thyroid cartilage of larynx Insertion: Thyroid cartilage of larynx |
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Omohyoid
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Origin: Superior border of scapula
Action: Depresses hyoid bone Insertion: Body of hyoid bone |
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Thyrohyoid
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Origin: Thyroid cartliage of larynx
Action: Elevates thyroid cartilage, depresses hyoid bone Insertion: hyoid bone |
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External intercostals
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Origin: Inferior margins of ribs 1-11
Action: Elevates ribs to aid in inspiration Insertion: Superior margin of next lower rib |
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Internal intercostals
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Origin: Superior ribs of 2-12 and margin of sternum
Action: Forcefully contracts and retracts ribs to assist in respiration Insertion: Inferior margin of next higher rib |
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Diaphragm
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Origin: Xiphoid process, ribs 7-12, lumbar vertebra
Action: Prime mover of inspiration Insertion: Central tendon of diaphragm |
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Rectus abdominus
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Origin: Pubic crest and symphysis
Action: Flexes vertebral column, stabilizes pelvis during walking Insertion: Xiphoid process and ribs 5-7 |
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External obliques
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Origin: Ribs 5-12
Action: Aids in flexing rectus abdominus, aids muscles in trunk rotation, aids in side bends Insertion: Iliac crest, pubic symphysis, superior pubic |
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Internal obliques
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Origin: Thoracolumbar fascia, iliac crest, inguinal ligament
Action: Aids in flexing rectus abdominus, aids muscles in trunk rotation, aids in side bends Insertion: Ribs 10-12, costal cartilage 7-10, pubis |
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Tranversus abdominus
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Origin: Inguinal ligament, lumbar fascia, last six ribs and iliac crest
Action: Compresses abdomen Insertion: Xiphoid process, linea alba, pubis |
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Linea alba
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Origin: Sternum
Action: Forms midline Insertion: Pubic symphysis |
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Erector spinae
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Origin: Nuchal ligament, ribs 3-12, T and L vertebrae, sacrum, thoracolumbar fascia
Action: Extend and maintain erect posture of vertebral column, rotates head Insertion: Mastoid process, C and T vertebrae, all ribs |
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Rhomboideus Major
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Origin: Spinous processes of T2-T5
Action: Retracts scapula and braces shoulder, fixes scapula during arm movements Insertion: Medial border of scapula |
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Rhomboideus minor
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Origin: Spinous processes of of C7-T1
Action: Retracts scapula and braces shoulder, fixes scapula during arm movements Insertion: Medial border of scapula |
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Levator scapulae
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Origin: C1-C4
Action: Elevates, rotates downward scapula Insertion: Superior angle, and medial border of scapula |
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Trapezius
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Origin: Occipital bone and spines of C7 and all thoracic vertebrae
Action: Stabilizes, retracts, elevates and rotates scapula, extends head Insertion: Spine of scapula, acromion, lateral 1/3 of clavicle |
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Serratus Anterior
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Origin: All ribs
Action: With pec minor draws scapula lateral and forward, prime mover in forward reaching/pushing actions, helps in rotating and fixing scapula Insertion: Medial border of scapula |
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Pectoralis minor
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Origin: Anterior ribs 3-5
Action: Draws scapular lateral and forward. Helps rotate scapula and depress shoulder Insertion: Coracoid process of scapula |
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Pectoralis major
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Origin: medial clavicle, costal cartilage
(costals 1-7), aponeurosis of external obliques Action: flex upper arm, adducts upper arm across chest Insertion: Intertubercular sulcus of humerus |
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Latissimus dorsi
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Origin: T6 - T12, all Lumbar ver., sacrum, ilium, inferior four ribs
Action: extends, adducts, medially rotates upper arm Insertion: Intertubercular groove of humerus |
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Teres major
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Origin: Inferior angle of scapula
Action: extends, adducts, medially rotates arm Insertion: intertubercular sulcus of humerus |
