canal anal Flashcards

1
Q

terço inferior do canal anal é derivado

A
  • da fosseta anal
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2
Q

2 terços superiores do canal anal

A
  • derivados do intestino posterior
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3
Q

linha pectínea irregular

A
  • limite inferior das válvulas anais
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4
Q

linha anocutanea (linha branca)

A
  • 2cm acima do anus
  • epitélio anal muda de cél. colunares para pavimentosas estratificadas
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5
Q

no anus tem epitélio queratinizado

A
  • forma queratina
  • continuo a com a pele arredor do anus
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6
Q
A
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