Muscle Tables Flashcards
Origin of Anterior Digastric Belly
Digastric fossa of mandible
Insertion of Anterior Digastric Belly
Hyoid bone via the digastric tendon
Innervation of Anterior Digastric Belly
mylohyoid n. (CN V3)
Action of Anterior Digastric Belly
lowers mandible or raises hyoid
Origin of Posterior Digastric Belly
medial aspect of mastoid process
Insertion of Posterior Digastric Belly
Hyoid bone via the digastric tendon
Innervation of Posterior Digastric Belly
CN VII
Action of Posterior Digastric Belly
elevates and retracts hyoid
Origin of Mylohyoid
Mylohyoid line of mandible
Insertion of Mylohyoid
hyoid bone and mylohyoid raphe
Innervation of Mylohyoid
mylohyoid n. (CN V3)
Action of Mylohyoid
supports and elevates floor of mouth; raises hyoid
Origin of Geniohyoid
inferior mental spine of mandible
Insertion of Geniohyoid
hyoid bone
Innervation of Geniohyoid
C1 branch traveling with CN XII
Action of Geniohyoid
draws mandible and hyoid toward each other
Origin of Stylohyoid
styloid process
Insertion of Stylohyoid
body of the hyoid bone
Innervation of Stylohyoid
CN VII
Action of Stylohyoid
elevates and retracts hyoid
Origin of Hyoglossus
greater horn of the hyoid bone
Insertion of Hyoglossus
lateral tongue
Innervation of Hyoglossus
CN XII
Action of Hyoglossus
depresses and retracts the tongue
Origin of Genioglossus
superior mental spine
Insertion of Genioglossus
hyoid bone, tongue
Innervation of Genioglossus
CN XII
Action of Genioglossus
protrudes, depresses, and retracts the tongue
Origin of Styloglossus
styloid process
Insertion of Styloglossus
lateral tongue
Innervation of Styloglossus
CN XII
Action of Styloglossus
retracts and elevates the tongue
Origin of Palatoglossus
posterior margin of the hard palate, palatine aponeurosis
Insertion of Palatoglossus
lateral tongue
Innervation of Palatoglossus
CN X, pharyngeal branches
Action of Palatoglossus
depresses the palate, elevates the back of the tongue
Origin of Masseter
Zygomatic arch
Insertion of Masseter
lateral angle of the mandible
Innervation of Masseter
CN V3, Masseteric n.
Action of Masseter
elevate mandible
Origin of Temporalis
Temporal fossa and temporal fascia
Insertion of Temporalis
coronoid process, rams of the mandible down to the 3rd molar tooth
Innervation of Temporalis
CN V3, deep temporal nn.
Action of Temporalis
elevate and retract mandible
Origin of Medial Pterygoid
Deep Head: medial side of lateral pterygoid plate and pyramidal process of the palatine bone
Superficial Head: tuberosity and pyramidal process of the palatine bone
Insertion of Medial Pterygoid
medial angle of the mandible
Innervation of Medial Pterygoid
N. to the medial pterygoid from CN V3
Action of Medial Pterygoid
Elevate and laterally move the mandible
Origin of Lateral Pterygoid
Upper Head: roof of the infra temporal fossa
Lower Head: lateral surface of the lateral pterygoid plate
Insertion of Lateral Pterygoid
Upper Head: TMJ Disc
Lower Head: Fovea of the Mandible
Innervation of Lateral Pterygoid
N. to the lateral pterygoid from CN V3
Action of Lateral Pterygoid
Protrude and laterally move the mandible
Origin of Tensor Veli Palatini
Scaphoid fossa, entire length of fibrous part of auditory tube, spine of sphenoid
Insertion of Tensor Veli Palatini
palatine aponeurosis
Innervation of Tensor Veli Palatini
V3 branch to medial pterygoid
Action of Tensor Veli Palatini
tense soft palate; open auditory tube
Origin of Levator Veli Palatini
petrous part of the temporal bone anterior to carotid canal
Insertion of Levator Veli Palatini
palatine aponeurosis
Innervation of Levator Veli Palatini
CN X via pharyngeal plexus
Action of Levator Veli Palatini
elevate soft palate
Origin of Palatopharyngeus
palatine aponeurosis
Insertion of Palatopharyngeus
Pharyngeal wall
Innervation of Palatopharyngeus
CN X via pharyngeal plexus
Action of Palatopharyngeus
depress soft palate or elevate pharynx; narrow fauces
Origin of Palatoglossus
palatine aponeurosis
Insertion of Palatoglossus
lateral tongue
Innervation of Palatoglossus
CN X via pharyngeal plexus
Action of Palatoglossus
depress soft palate or elevate rear of tongue; narrow fauces
Origin of Musculus Uvulae
central posterior hard palate (posterior nasal spine)
Insertion of Musculus Uvulae
uvula
Innervation of Musculus Uvulae
CN X via pharyngeal plexus
Action of Musculus Uvulae
Thickens central soft palate, shortens uvula