Head & Neck Anatomy: Muscles Of The Tongue And Neck Flashcards
Intrinsic muscles of tongue: superior longitudinal and inferior longitudinal muscles make the tongue __ and ___
Short and thick
Intrinsic muscles of tongue: transverse and vertical muscles make the tongue __ and __
Narrow and long
3 extrinsic muscles of the tongue include?
Styloglossus
Genioglossus
Hyloglossus
Styloglossus origin is styloid process of temporal bone and insertion is tongue. Action?
Retracts the tongue and moves it superiorly
Genioglossus origin is geniotubercles (inner medial area of the mandible) insertion is the tongue. Action?
Sticks tongue out and depresses part of the tongue
Hyloglossus origin is hyoid bone, insertion is the tongue. Action?
Depresses the tongue
The suprahyoid muscles and the infraorbital muscles together assist in the action of ___ and ___
Mastication and swallowing
What muscle of the neck originates from an area above, elevates the hyoid bone and depresses the mandible
Suprahyoid bone
L-shaped muscle of the neck with 2 bellies, anterior (horizontal) and posterior (vertical)
Digastric
What muscle of the neck makes the floor of the mouth
Mylohyoid
What muscle of the neck elevates the hyoid bone and draws it posteriorly
Stylohyoid
What muscle of the neck elevates the hyoid bone and depresses the mandible
Geniohyoid
What muscles of the neck assist in depressing the hyoid bone
Infrahyoid muscles
What muscles of the neck depresses the hyoid bone and elevates the thyroid cartilage
Thyrohyoid
What muscle of the neck is composed of inferior and superior belly
Omohyoid
What muscle of the neck depresses the hyoid bone; it originates at the sternum and inserts at the hyoid bone
Sternohyoid
What muscle of the neck depresses the thyroid cartilage and larynx
Sternothyroid
What muscle of the neck when contracted one side bends the neck and contraction of both sides makes the head bow
Sternocleidomastoid (SCM)
What muscle of the neck shrugs the shoulders
Trapezius
