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5 Written questions

4 Matching questions

  1. Stacked bilateral swellings
  2. 3rd week
  3. Primary palate
  4. 4th week
  1. a formation of the stacked bilateral swelling which are the branchial arches.
  2. b Now we see the mesoderm differentiate and begin to divide into paired cuboidal aggregates of cells called somites.
  3. c The _____________ partially separates the nasal and oral cavities in the 5th week.
  4. d The____ _____ ____ of tissue appearing inferior to the stomodeum, and including the mandibular arch, are branchial arches.

5 Multiple choice questions

  1. _____ _______allows the fusion of swellings or tissue from different surfaces of the embryo.
  2. The embryonic period is characterized by increased ____ ____.
  3. ________is composed entirely of inner and outer enamel epithelium
  4. ____________ is enlarged as a result of the disintegration of the oropharyngeal membrane.
  5. The _____ ______is the transition zone outlining the lips from the surrounding skin.

5 True/False questions

  1. Horizontal epithelial extensionsPhiltrum is located in the midline of the face and forms from the


  2. 4th weekFormation of the forgut, the midgut and the hindgut.


  3. Cervical loopThe _____ _____ is responsible for the development of the root.


  4. Fordyce's spotsAfter the inner enamel epithelium differentiates into _____________, the outer cells of the dental papilla are induced by the preameloblasts to differentiate into odontoblasts.


  5. 3rd weekBilaminar embryonic disc is developed from the blastocyst.