Deep Neck Flashcards
Suprahyoid muscles
Mylohyoid
Geniohyoid
Digastrics
Infrahyoid muscles
Sternohyoid
Omohyoid
Sternothyroid
Thyrohyoid
Mylohyoid nerve supply and action
Nerve to mylohyoid from inferior alvolar nerve (trigeminal)
Elevates hyoid and tongue
Geniohyoid nerve supply and action
C1 via hypoglossal nerve
Shortens mouth floor
Digastrics nerve supply and action
anterior portion=mandibular division of trigeminal
posterior portion=facial nerve
Both depress mandible, steady hyoid
Sternohyoid and omohyoid
Ansa cervicalis
Depress and steady hyoid
Sternothyroid
Ansa cervicalis
Depress hyoid and larynx
Thyrohyoid
C1 via the hypoglossal nerve
Depress hyoid and elevate larynx
Landmark for hypoglossal nerve
superior root of ansa cervicalis
What muscles originate on body of hyoid?
Genioglossus, Mylohyoid, Sternohyoid, Omohyoid
What muscles insert on Greater horn of hyoid?
Middle pharyngeal constrictor, Hyloglossus, Stylohyoid
Where does thyrohyoid originate?
part where body of hyoid connects to greater horn of hyoid
Larynx muscles innervation?
Internal branch of laryngeal nerve
Anterior vertebral muscles
Longus colli
Rectus capitis anterior
anterior scalene
Lateral Vertebral Muscles
Rectus capitis Lateralis
Splenius capitis
Levator scapulae
Middle and posterior scalene