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15 Cards in this Set

  • Front
  • Back
Origin – superior part of mental spine of mandible
Insertion – dorsum of tongue and hyoid bone (body)
Innervation – hypoglossal nerve (XII)
Action – depresses tongue, posterior part protrudes tongue
Origin – body and greater horn of hyoid bone
Insertion – side and inferior aspect of tongue
Innervation – hypoglossal nerve (XII)
Action -depresses and retracts tongue
Origin – Styloid process and stylohyoid ligament
Insertion – side and inferior aspect of tongue
Innervation – hypoglossal nerve (XII)
Action – retracts tongue and draws it up during swallowing to form a trough.
Origin – Palatine aponeurosis of soft palate
Insertion – side of tongue
Innervation – Cranial nerve X.
Action – elevates posterior tongue
Hypoglossal Nerve Injury:

Because of the actions of the genioglossus muscle, an injury to the hypoglossal nerve causes the protruded tongue to point ___
toward the side of the nerve damage
Tensor veli palatini
Origin – medial pterygoid plate, spine of sphenoid bone, cartilage of tympanic tube
Insertion – palatine aponeurosis
*Innervation – V3
Action – tenses soft palate, opens tympanic tube during swallowing and yawning
Levator veli palatini
Origin – cartilage of tympanic tube and petrous part of temporal bone
Insertion – palatine aponeurosis
Innervation – cranial nerve X
Action – elevates soft palate during swallowing and yawning
Origin – hard palate and palatine aponeurosis
Insertion – lateral wall of pharynx
Innervation – cranial nerve X.
Action – Tenses soft palate and pull wall of pharynx superiorly, anteriorly and medially during swallowing.
Origin – posterior nasal spine and palatine aponeurosis
Insertion – mucosa of uvula
Innervation – cranial nerve X
Action – shortens uvula and pulls it superiorly.
Deviation of Uvula:

When there is an injury to cranial nerve X, on examination of the oral cavity, the uvula will deviate to ___.
Also, the ___ muscle will not contract on the affected side.
-the opposite side
s. 29
Mylohyoid muscle
Origin – mylohyoid line of mandible
Insertion – raphe and body of hyoid bone
Innervation – mylohyoid nerve, a branch of inferior alveolar nerve (V3)
Action – elevates floor of mouth during swallowing and speech
Geniohyoid muscle
Origin – inferior mental spine of mandible
Insertion – body of hyoid bone
Innervation – C1 via hypoglossal nerve
Action - draws hyoid anteriorly and superiorly during swallowing
Anterior belly of digastric muscle
Origin – digastric fossa of mandible
Insertion – intermediate tendon to greater horn of hyoid bone.
Innervation – nerve to mylohyoid (V3)
Action – depresses mandible, raises and stabilizes hyoid bone
Mumps virus is a ___
___ is only reservoir
In USA, still substantial numbers of unvaccinated children
Characterized by ___ swelling
Can cause ___
-single stranded RNA virus
-parotid gland
-meningitis and epididymo-orchitis --> [infertile]
Inflamed pharyngeal tonsil is called ___