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PHARYNGEAL ARCHES 01

PHARYNGEAL ARCHES 01

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PHARYNGEAL ARCHES 01

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  1. PHARYNGEAL ARCHES 01 26 DAY EMBRYO: This is a frontal section through the pharyngeal region of a 26 day embryo. Locate and identify the following: DIENCEPHALON, OPTIC STALK, OPTIC CUP, PHARYNGEAL ARCHES, ECTODERMAL COVERING OF ARCH, ENDODERMAL LINING OF ARCH, MESODERMAL CORE OF ARCH, AORTIC ARCHES, HEAD MESENCHYME and SPINAL CORD.

  2. PHARYNGEAL ARCHES 02 SECOND PHARYNGEAL ARCH CYST:

  3. PHARYNGEAL ARCHES 03 CT SCAN OF SECOND ARCH CYST: How does such a cyst develop?

  4. PHARYNGEAL ARCHES 04 SECOND ARCH SINUS OR FISTULAE: How would you differentiate between a sinus and a fistulae?

  5. PHARYNGEAL ARCHES 05 SECOND ARCH FISTULAE: Why?

  6. PHARYNGEAL ARCHES 06 THYROGLOSSAL DUCT CYST. How does this condition develop?

  7. PHARYNGEAL ARCHES 07 CT SCAN OF THYROGLOSSAL DUCT CYST

  8. PHARYNGEAL ARCHES 08 SUPRA LINGUAL THYROID: How would you treat this abnormality?

  9. PHARYNGEAL ARCHES 09 SUBLINGUAL THYROID: How would you treat this?

  10. PHARYNGEAL ARCHES 10 HYPOTHYROIDISM: (also know as cretinism) What are the identifying characteristics of this condition?

  11. PHARYNGEAL ARCHES 11 HYPERTHYROIDISM: How might this condition arise. What are the identifying characteristics?

  12. PHARYNGEAL ARCHES 12 FIRST ARCH SYNDROME (TREACHER-COLLINS SYNDROME): Identify the characteristics of First Arch Syndrome. How does this condition arise embryologically?

  13. PHARYNGEAL ARCHES 13 FIRST ARCH SYNDROME (TREACHER-COLLINS SYNDROME): Identify the characteristics of First Arch Syndrome. How does this condition arise embryologically?

  14. PHARYNGEAL ARCHES 14 FIRST ARCH SYNDROME (TREACHER-COLLINS SYNDROME): Identify the characteristics of First Arch Syndrome. How does this condition arise embryologically?

  15. PHARYNGEAL ARCHES 15 MICROGNATHIA (PIERRE ROBIN SYNDROME): With which arch is this abnormality associated?

  16. PHARYNGEAL ARCHES 16 FIRST PHARYNGEAL ARCH CYST: How do you know this is a first arch cyst?

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