Muscles of facial expression

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1. Insertion, function of the largest muscle in the nasal group.

  • Nasalis, inserts= transverse part to the aponeurosis at the dorsum of the nose (compreses flares). Alar part to the alar cartilage of nasoskeleton (inflares nostrils)
  • Nasalis, inserts= into the maxilla (inflares nostrils)
  • Deppresor septi nasi, inserts= transverse part to the aponeurosis at the dorsum of the nose (compreses flares). Alar part to the alar cartilage of nasoskeleton (inflares nostrils)
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2. Where does procerus orginate from

  • Its is the most superior muscle in the nasal muscles and attaches onto the skin above zygomatic bone
  • it orginates from the nasal bone and inserts onto the lower medial forehead -pulls eyebrows medially cause vertical wrinkles
  • it orginates from the nasal bone and inserts onto the upper forehead -raises eyebrows medially cause horizontally wrinkles

3. Which of these muscles are not part of the orbital group?

  • Procerus (eyebrows)
  • Corrugator Supercilli
  • Obcularis Oculi - outer orbital part
  • Obcularis Oculi - inner palpebral part

4. What is it called when the cornea becomes exposed and dries out?

  • exposure Occulis
  • inclosure keratitis
  • exposure keratitis
  • inclosure Occulis

5. which muscles blends with the obcularis oris?

  • Buccinator wich has infermedial direction fibres, and prevents accumulation of food in the cheeks
  • Obcularis palpebra part and orbital part. Palpebra part contracts muscle softly, and orbital part contracts strongly

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