O/I's

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Created by
Christyn Smith

Cards (11)

  • mylohyoid
    O: mylohyoid line of mandible
    I: hyoid bone
    Inn: CN V branch of inferior alveolar n.
    BS: branches of lingual, maxillary, and facial a.
    A: elevate head, elevate tongue during swallowing or speaking
  • geniohyoid
    O: mental spine of mandible
    I: hyoid bone
    Inn: C1 via hypoglossal n.
    BS: sublingual branch of lingual artery
    A: elevate hyoid, shortens floor of mouth
  • digastrics
    O: mandible; mastoid notch of temporal bone
    I: tendon to hyoid bone
    Inn: CN V branch of inferior alveolar n.; CN VII, digastric branch
    BS: branch of facial artery; branch of occipital artery
    A: depress mandible, elevates and stabilizes hyoid bone during swallowing
  • stylohyoid
    O: styloid process of temporal bone
    I: hyoid bone
    Inn: CN VII, stylohyoid branch
    BS: branches of facial, occipital and posterior auricular arteries
    A: elevates hyoid bone, retracts hyoid bone
  • sternohyoid
    O: sternum and medial side of clavicle
    I: hyoid bone
    inn: C1-3 spinal n., branch of ansa cervicalis
    BS: superior and inferior thyroid arteries
    A: depress, retract and stabilize hyoid
  • omohyoid
    O: superior border of scapula
    I: hyoid bone
    Inn: C1-3 spinal nerves, branch of ansa cervicalis
    BS: superior and inferior thyroid arteries
    A: depress, retract and stabilize hyoid
  • sternothyroid
    O: sternum
    I: thyroid cartilage
    Inn: C2-3 SN, branch of ansa cervicalis
    BS: superior and inferior thyroid arteries
    A: depress hyoid and larynx
  • thyrohyoid
    O: thyroid cartilage
    I: hyoid bone
    inn: C1 via hypoglossal n.
    BS: superior and inferior thyroid arteries
    A: depress hyoid bone and elevate larynx
  • sternocleidomastoid
    O: sternum and clavicle
    I: mastoid process of skull; superior nuchal line
    Inn: accessory n.
    BS: branches of superior thyroid artery and occipital artery
    A: flexion of cervical spine, inferior portion; extension of C spine, superior portion; elevation of clavicle, all together; lateral flexion of C spine and rotation in opp direction
  • scalene muscles
    O: anterior- transverse processes of C3-6
    middle- transverse processes of C3-C7
    posterior- transverse processes of C5-6
    I: anterior- first rib
    middle- first rib
    posterior- second rib
    Inn: SN C3-8
    BS: inferior thyroid artery
    A: unilaterally-laterally flex neck; bilaterally- neck flexion
  • platysma
    O: skin of clavicular region
    I: lower mandible, lower lip, orbicularis oris muscle
    Inn: facial n., cervical branch
    BS: suprascapular a., submental a. (branch of facial a.)
    A: depresses mandible, tense skin of anterior neck