Muscles, Origins, Insertions, and Actions

These flashcards is to help study for a test on: Muscles Insertion, Action, and Origin.

54 cards   |   Total Attempts: 183
  

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Cards In This Set

Front Back
Origin: Alveolar process of maxilla and mandible opposite the molar teeth.
Insertion: Blends into fibers of orbicularis oris.
Action: Compresses cheek.
Answer 1
Buccinator Muscles
Question 2
Depressor labii inferioris
Origin: Mandible between the anterior midline and the mental foramen
Insertion: Skin of lip
Action: Depresses lower lip
Origin: Inferior portion of the orbit
Insertion: Orbicularis oris
Action: Elevates upper lip
Answer 3
Levator labii superioris
Question 4
Mentalis
Origin: Incisive fossa of mandible.
Insertion: Skin of chin. Elevates and protrudes lower lip
Action: Elevates and protrudes lower lip
Origin: Maxilla and mandible.
Insertion: Lips.
Action: Compresses, purses lips.
Answer 5
Orbicularis oris
Question 6
Risorius
Origin: Fascia surrounding parotid salivary gland.
Insertion: Angle of mouth
Action: Draws corner of mouth to the side
Origin: Fascia of the superior thorax between cartilage of second riband acromion of scapula.
Insertion: Mandible and skin of cheek
Action: Tenses skin of neck, depresses mandible
Answer 7
Platysma
Masseter
Origin: Zygomatic arch.
Insertion: Lateral surface and angle of mandibular ramus.
Action: Elevates mandible and closes jaws.
Temporalis
Origin: Along temporal lines of skull.
Insertion: Coronoid process of mandible.
Action: Elevates mandible and closes jaws.
Pterygoids
Origin: Lateral pterygoid plate.
Insertion: Medial suface of mandibular ramus.
Action: Elevates the mandible and closes the jaws, or moves mandible side to side.
Medial Pterygoids
Origin: Lateral pterygoid plate and adjacent portion of palatine bone and maxilla.
Insertion: Medial suface of mandibular ramus.
Action: Elevates the mandible and closes the jaws, or moves mandible side to side.
Lateral Pterygoids
Origin: Lateral pterygoid plate and greater wing sphenoid.
Insertion: Anterior part of the neck of the Mandible condyle.
Action: Opens jaws, protrudes mandible, or moves madible side to side.
Genioglossus
Origin: Medial surface of mandible around chin.
Insertion: Body of tongue, hyoid bone.
Action: Depresses and protracts tongue.
Hyoglossus
Origin: Body and greater horn of hyoid bone.
Insertion: Side of tongue.
Action: Depresses and retracts tongue.
Palatoglossus
Origin: Anterior surface of soft palate.
Insertion: Side of tongue.
Action: Elevates tongue, depresses soft palate.