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25 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Temporalis
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Origin: Temporal lines
Action: Elevate and retract mandible Insertion: Coronoid process of mandible |
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Masseter
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Origin: Zygomatic Arch
Action: Elevate mandible Insertion: Mandibular ramus |
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Orbicularis oculi
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Origin: Medial wall of orbit
Action: close eye; help with tear flow Insertion: eyelid |
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Orbicularis oris
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Origin: Muscles around the mouth
Action: Move lips Insertion: Mucous membranes of lips |
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Platysma
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Origin: Fascia of deltoid and pectoralis muscles
Action: Depress mandible; open and widen mouth; tense skin of the neck Insertion: Mandible; skin of lower face; corners of mouth |
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External intercostals
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Origin: Inferior border of rib above
Action: Elevate rib cage by pulling ribs together to aid in inspiration Insertion: Superior border of rib below |
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Internal intercostals
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Origin: Superior border of rib above
Action: Draws ribs together and depresses the rib cage to aid expiration Insertion: Inferior border of rib below |
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Rectus abdominus
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Origin: Pubic crest and symphysis
Action: Flex, rotate lumbar region of vertebral column; Compress the abdomen Insertion: Xiphoid process and costal cartilage of ribs 5-7 |
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External obliques
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Origin: Outer inferior strip of lower 8 ribs
Action: Flex vertebral column; compress abdominal wall; aid in trunk rotation Insertion: iliac crest; linea alba |
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Internal obliques
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Origin: Lumbar fascia; iliac crest
Action: Flex vertebral column; compress abdominal wall; aid in trunk rotation Insertion: Cartilage of last 3-4 ribs; linea albea; pubic crest |
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Transversus abdominus
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Origin: Inguinal ligament; lumbar fascia; iliac crest; cartilage of inferior six ribs
Action: Compress abdomen Insertion: linea alba and pubic crest |
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Linea alba
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Sternocleidomastoid
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Origin: Clavicle and manubrium of sternum
Action: Draw head forward and down; turn head to ipsilateral side when one fires Insertion: mastoid process |
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Digastric
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Origin: Mastoid notch and mandible
Action: Retract mandible; elevate/flex hyoid Insertion: Hyoid bone |
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Stylohyoid
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Origin: Styloid process
Action: Elevate hyoid Insertion: Hyoid |
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Mylohyoid
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Origin: Mandible
Action: Elevate hyoid; Forms floor of the mouth Insertion: Hyoid |
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Sternothyroid
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Origin: Manubrium and costal cartilage
Action: Depress larynx and fix hyoid Insertion: Thyroid cartilage |
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Omohyoid
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Origin: Superior border of scapula
Action: Depress hyoid; fix hyoid Insertion: Hyoid |
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Thyrohyoid
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Origin: Thyroid cartilage of larynx
Action: Depress hyoid; fix hyoid; elevate larynx Insertion: hyoid |
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Pectoralis major
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Origin: Sternal end of clavicle, sternum, Cartilage of ribs 1-6
Action: arm flexion, rotates arm medially, adducts arm against resistance Insertion: Tendon into intertubercular groove of humerus |
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latissimus dorsi
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Origin: Spines of lower 6 thoracic vertebrae, lumbar vertebrae, lower 3-4 ribs, iliac crest
Action: Main extender of arm Insertion: intertubercular groove of humerus |
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Teres major
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trapezius
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Origin: occipital bone; spines C7 and T1-T12
Action: Stabilize, raise, retract, rotate scapula and shoulder Insertion: Along acromion and spine of scapula and lateral third of clavicle |
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Serratus anterior
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Origin: Ribs 1-8
Action: Brings scapula against chest wall; raises shoulder; abducts and raises arm Insertion: Anterior surface of vertebral border of scapula |
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Pectoralis minor
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Origin: Anterior surfaces of ribs 3-5
Action: Pulls scapula forward and down; lifts rib cage superiorly Insertion: Coracoid process of scapula |