Neck & Suboccipital Flashcards
Draw deep cervical fascia
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Anterior muscles of the neck
Suprahyoid: Digastric, mylohyoid, geniohyoid, stylohyoid
Infrahyoid: omohyoid, sternohyoid, sternothyroid, thyrohyoid
Suprahyoid muscles
Digastric (anterior and posterior bellies)
Mylohyoid
Geniohyoid
Stylohyoid
Infrahyoid muscles
Omohyoid (superior and inferior bellies
Sternohyoid
Sternothyroid
Thyrohyoid
Digastric anterior belly attachments
From… the digastric fossa of the mandible
to… the intermediate tendon (greater cornu of hyoid)(inferior border of mandible near symphysis to intermediate tendon & body and cornu of hyoid)
Digastric anterior belly functions
depression of the mandible or elevation of the hyoid
Digastric anterior belly innervation
Trigeminal V3
Digastric posterior belly attachments
from… the temporal mastoid notch
to… the intermediate tendon (greater cornu of hyoid)(mastoid process to intermediate tendon & body of cornu of hyoid)
Digastric posterior belly functions
depression of the mandible or elevation of the hyoid
Digastric posterior belly innervation
Facial VII
Mylohyoid attachments
from… the mylohyoid line of the mandible
to… the midline raphe & anterior aspect of the body of the hyoid
Mylohyoid function
elevation of the floor of the oral cavity
Mylohyoid innervation
Trigeminal V3
Geniohyoid attachments
from… the inferior genial tubercle of the mandible
to… the anterior aspect of the body of the hyoid (median ridge of mandible to body of hyoid)
Geniohyoid functions
elevation of tongue and hyoid or depresses mandible
Geniohyoid innervation
C1 via XII
Stylohyoid attachments
from… the styloid process of temporal bone
to… the body of hyoid bone
Stylohyoid function
elevation & retraction of the hyoid
Stylohyoid innervation
Facial VII
Omohyoid attachments
from… the superior border of the scapula medial to the scapular notch
to… the lateral aspect of the hyoid passing through an intermediate tendon sling loosely associated with the clavicle & 1st rib
Omohyoid function
depression of the hyoid
Omohyoid superior belly innervation
Ansa cervicalis C1-3
Omohyoid inferior belly innervation
Ansa cervicalis C1-3
Sternohyoid attachments
from… the posterior side of the proximal clavicle & adjacent manubrium
to… the inferior border of body of the hyoid
Sternohyoid function
depresses the hyoid
Sternohyoid innervation
Ansa cervicalis C1-3
Sternothyroid attachments
from… the posterior aspect of the manubrium & costal cartilage of 1st rib
to… the thyroid lamina
Sternothyroid function
depression of the elevated larynx
Sternothyroid innervation
Ansa cervicalis C1-3
Thyrohyoid attachments
from… the thyroid lamina
to… the greater horn of the hyoid bone
Thyrohyoid function
depression of the hyoid or elevation of the thyroid cartilage
Thyrohyoid innervation
C1 via XII
Pharyngeal arches
Mandibular, hyoid, third, fourth, sixth
Mandibular Pharyngeal arch muscles
Mastication, Mylohyoid, Digastric anterior belly
Mandibular Pharyngeal arch nerve
Trigeminal V3