Muscles of Deep Neck Flashcards
Name muscle A.
Tensor veli palatini
Describe the origin of the tensor veli palatini.
Scaphoid fossa and spine sphenoid bone and wall of auditory tube.
Describe the insertion of the tensor veli palatini.
Palatine aponeurosis
What is the action of the tensor veli palatini?
Opens auditory tube;
Tenses soft palate
Describe the innervation of the tensor veli palatini.
Nerve to tensor veli palatini
Describe the blood supply to the tensor veli palatini
Ascending and greater palatine arteries
Name muscle B.
Palatoglossus muscle
Describe the origin of the Palatoglossus muscle.
Palatine aponeurosis
Describe the insertion of the Palatoglossus muscle
Lateral aspect of tongue
Describe the action of the Palatoglossus muscle
Elevates tongue
Brings palatoglossal arches together
Describe the innervation of the Palatoglossus muscle
Pharyngeal plexus (CN X)
Describe the blood supply to the Palatoglossus muscle
Ascending palatine and ascending pharyngeal arteries
Name muscle C.
Genioglossus muscle
Describe the origin of the genioglossus muscle.
Superior mental spine of mandible
Describe the insertion of the genioglossus muscle.
Body of hyoid bone and intrinsic muscles of tongue.
Describe the action of the genioglossus muscle..
Protrudes and depresses tongue
Describe the innervation of the genioglossus muscle.
Hypoglossal nerve (CN XII)
Describe the arterial supply to the genioglossus muscle.
Sublingual and submental arteries
Name muscle D.
Mylohyoid muscle
Describe the origin of the mylohyoid muscle.
Mylohyoid line of mandible.
Describe the action of the mylohyoid muscle.
Elevates floor of mouth
Describe the insertion of the mylohyoid muscle.
Mylohyoid raphe and body of hyoid bone.
Describe the innervation of the mylohyoid muscle.
Nerve to mylohyoid muscle (CN V3)
Describe the arterial supply to the mylohyoid muscle.
Sublingual and submental arteries
Suprahyoid branch of lingual artery
Mylohyoid and mental branches of inferior alveolar artery
Name muscle E.
Styloglossus muscle
Describe the origin of the styloglossus muscle.
Stylohyoid process of temporal bone.