Q:

The simple columnar and stratified columnar epithelia lining the lower part of the anal canal is derived from

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The simple columnar and stratified columnar epithelia lining the lower part of the anal canal is derived from


  1. mesoderm
  2. endoderm
  3. ectoderm
  4. neuroectoderm
  5. neural crest cells

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C. The anal canal is formed from two components—the hindgut and proctodeum. The epithelium lining the lower anal canal is derived from ectoderm lining the proctodeum.

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