FACE

• What is the anterior aspect of the head called?

  Face
• What are the boundaries of the face?

  From forehead to chin and ear to ear
• What are the main components of the face?

  • Facial muscles
  • Vessels and nerves
  • Variable amount of fat
• What is absent from the face except at two regions?

  Deep fascia
• Where is the parotid fascia located?

  At the parotid gland
• Where is the buccopharyngeal fascia located?

  At the buccinator muscle
• What is the function of facial muscles?

  Facial expression
• From which arch are facial muscles developed?

  2nd pharyngeal arch
• Which nerve supplies the facial muscles?

  Facial nerve
• What are the classifications of facial muscles based on their names?

  • Palpebrae: eyelid
  • Levator: elevate
  • Labii: lips
  • Oris: mouth
• What is the origin of the frontal bellies of the occipito-frontalis muscle?

  Skin of eyebrows
• What is the function of the frontal bellies of the occipito-frontalis muscle?

  Wrinkles forehead and raises eyebrows
• What innervates the frontal bellies of the occipito-frontalis muscle?

  Temporal branch of facial nerve
• What is the action of the occipital bellies of the occipito-frontalis muscle?

  Draws scalp posteriorly
• What is the innervation of the occipital bellies of the occipito-frontalis muscle?

  Posterior auricular branch
• What is the function of the orbicularis oculi muscle?

  Closes the eye
• What are the two parts of the orbicularis oculi muscle?

  Palpebral part and orbital part
• What is the action of the palpebral part of the orbicularis oculi?

  Gentle closure of the eye
• What is the action of the orbital part of the orbicularis oculi?

  Tight closure of the eye
• What innervates the orbicularis oculi muscle?

  Temporal and zygomatic branches of facial nerve
• What is the action of the procerus muscle?

  Draws down on the medial angle of eyebrows
• What innervates the procerus muscle?

  Buccal branch of facial nerve
• What is the action of the corrugator supercilii muscle?

  Wrinkling of the eyebrow
• What innervates the corrugator supercilii muscle?

  Temporal branch of facial nerve
• What is the action of the depressor supercilii muscle?

  Wrinkling of the eyebrow
• What innervates the depressor supercilii muscle?

  Temporal branch of facial nerve
• What are the two portions of the nasalis muscle?

  Transverse portion and alar portion
• What is the action of the transverse portion of the nasalis muscle?

  Draws cartilage inferiorly and laterally
• What innervates the transverse portion of the nasalis muscle?

  Buccal branch of facial nerve
• What is the action of the alar portion of the nasalis muscle?

  Opens nostrils
• What innervates the alar portion of the nasalis muscle?

  Buccal branch of facial nerve
• What is the action of the depressor septi nasi muscle?

  Pulls nose inferiorly
• What innervates the depressor septi nasi muscle?

  Buccal branch of facial nerve
• What is the action of the dilator naris anterior muscle?

  Dilates the nostril
• What innervates the dilator naris anterior muscle?

  Buccal branch of facial nerve
• What is the action of the compressor narium minor muscle?

  Rotates the nasal tip caudally
• What innervates the compressor narium minor muscle?

  Zygomaticotemporal branch of facial nerve
• What is the action of the orbicularis oris muscle?

  Closes, protrudes, compresses the lips
• What innervates the orbicularis oris muscle?

  Buccal branch of facial nerve
• What is the action of the buccinator muscle?

  Compression of cheeks against teeth