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A&P Final Exam
more muscles...oh yay
5
Anatomy
Undergraduate 2
04/30/2008

Additional Anatomy Flashcards

 


 

Cards

Term
Orbicularis Oris
Definition
  • Muscle of the face
  • Principal muscle of th lips
  • Function: close the mouth and pucker the lips
  • Important for the articulation of certain speech sounds 
Term
Buccinator Muscle
Definition
  • Also called Bugler's muscle
  • Principle muscle of the cheek
  • Deepest facial muscle
  • Origin: pterygomandibular raphe and alvelor portions of the maxillae and mandible
  • Insertion: Orbicularis Oris
  • Function: chewing, moving food onto molars; draws the mouth latterally and compresses the lips and cheeks against the teeth 
Term
Risorious Muscle
Definition
  • Origin: posterior regio of the face
  • parallel and superficial to the buccinator muscle
  • Imsertion: the skin and mucosa that the corner of the mouth
  • Function: contracts and retracts lips that the corners in a lateral direction (facilitates smiling)

 

Term
Angular Facial muscles
Definition
  • Insertion: Mid-lateral region of the Orbicularis Oris
  • Function: elevate the upper lip
  • Elevators: Levator Labii Superion, Levator Labii Superior Alaque Nasal, Zygomatic Major, Zygomatic minor
  • The Depressor Labii Inferior draws the lip downward and laterally
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