Neck Flashcards
SCM insertion
Mastoid process
SCM origin
Manubrium, medial third of clavicle
SCM innervation
Accessory nerve
SCM action
Rotates head on neck so that the chin moves toward the shoulder
Sternohyoid origin
Manubrium
Sternohyoid insertion
Hyoid bone
Sternohyoid innervation
Ansa cervicalis
Sternohyoid action
Depresses hyoid
Omohyoid origin
Superior border of the scapula
Omohyoid insertion
Hyoid bone
Omohyoid innervation
Ansa cervicalis
Omohyoid action
Depresses hyoid
Sternothyroid origin
Posterior side of manubrium
Sternothyroid insertion
Thyroid cartilage
Sternothyroid innervation
Ansa cervicalis
Sternothyroid action
Depresses hyoid and larynx
Thyrohyoid origin
Thyroid cartilage
Thyrohyoid insertion
Hyoid bone
Thyrohyoid innervation
C1 traveling with hypoglossal n.
Thyrohyoid action
Depresses hyoid and elevates larynx
Anterior digastric origin
Mandible
Anterior digastric insertion
Hyoid bone via intermediate tendon
Anterior digastric innervation
N. to mylohyoid (V3)
Anterior digastric action
Elevates hyoid, depresses mandible if hyoid is fixed
Posterior digastric origin
Mastoid process
Posterior digastric insertion
Hyoid bone via intermediate tendon
Posterior digastric innervation
Facial nerve
Posterior digastric action
Elevates and steadies hyoid
Stylohyoid origin
Styloid process
Stylohyoid insertion
Hyoid bone
Stylohyoid innervation
Facial nerve
Stylohyoid action
Elevates hyoid
Mylohyoid origin
Mandible
Mylohyoid insertion
Midline raphe, hyoid
Mylohyoid innervation
N. to mylohyoid (V3)
Mylohyoid action
Elevates hyoid, floor of the mouth, tongue
Geniohyoid origin
Inferior mental spines of mandible
Geniohyoid insertion
Hyoid bone
Geniohyoid innervation
C1 traveling with hypoglossal n.
Geniohyoid action
Elevates hyoid
Anterior scalene origin
Transverse processes of cervical vertebrae
Anterior scalene insertion
1st rib
Anterior scalene innervation
ventral rami of lower cervical nerves
Anterior scalene action
Elevates 1st rib, laterally flexes neck
Middle scalene origin
Transverse processes of cervical vertebrae
Middle scalene insertion
1st rib
Middle scalene innervation
ventral rami of lower cervical nerves
Middle scalene action
Elevates 1st rib, laterally flexes neck
Posterior scalene origin
Transverse processes of cervical vertebrae
Posterior scalene insertion
2nd rib
Posterior scalene innervation
ventral rami of lower cervical nerves
Posterior scalene action
Elevates 2nd rib, laterally flexes neck