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UNSW Embryology

Beginnings, Growth and Development

© Dr Mark Hill (2010)

Acknowledgements

Practical: Embryology of the Face and Ear

Aim:  To introduce students to the practical embryology of the face and ear.

Human Embryo Face (Carnegie stage 16 to 18, Kyoto collection)

Face stage 16 to 18

Face Development cartoon (More? on a new page)

Page Links: Introduction | Audio | Specific Objectives | Key Reading | Learning Activities | UNSW Embryology Notes | Serial Images | Computer Activities | Questions | Glossary |

Audio

Dr Mark Hill

This is an unedited MP3 recording of the practical demonstration given on Wednesday 20th May 2009 3-5pm.

Recording is provided for Educational purposes only.
BGD-BFace and Ear2009-05-20.mp3 1:15:16   34 Mb

Recording Notes:

Specific Objectives

  1. To understand the formation and contribution of the pharyngeal arches to face and neck development.
  2. To know the main structures derived from components of the pharyngeal arches (groove, pouch and arch connective tissue).
  3. To know the 3 major parts (external, middle and inner) of hearing development and their embryonic origins.
  4. To briefly understand some abnormalities associated with face and hearing development.

Key Reading

Learning Activities

Work through the linked online pages on the face and ear identifying:

Today's class will not cover in as much depth the development of the skull, vascular, nose (sensory), eyes (sensory), taste (sensory), teeth, oral cavity and endocrine. You will also understand that there are many other developmental systems that could also relate to the face and ear.

UNSW Embryology Notes

These topics were not covered in depth in this class, but I have included links for your own independent learning: 6. Additional Information | Head Notes | Face Notes | Ear Notes Week 4 Placodes | Senses Development | Eye Development | Cardiovascular - Ventricles into the Aortic System | Musculoskeletal Development - Skull Development | Endocrine Development - Pituitary | Endocrine Development - Thyroid | Abnormal Development - Fetal Alcohol Syndrome |

Questions

These questions will not be specifically answered in this laboratory (so don't ask the Tutor) and are designed to make you think more about the topic.

  1. Which of the pharyngeal arches contribute mainly to the face and which contribute mainly to the neck?
  2. Which of the lips has the most common clefting during development and why?
  3. Which is the more common clefting, cleft lip or cleft palate?
  4. What developmental environmental factors may contribute to abnormalities of both the face and ear position?
  5. What is the Eustachian tube and what is its function?
  6. What are preauricular tags and what may they indicate?
  7. At what age is hearing tested with Australian children?
  8. What is otitis media and how does it occur?

Next

Link to next page in this Face Practical - Early Development

The next page will introduce the first 3 weeks of development as they relate to the face and ear.

 

Glossary

Use the alphabetical list below to find definitions of terms that are new to you or use the Google search window to search UNSW Embryology site.

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Numbers

Quick Links

UNSW Embryology ISBN: 978 0 7334 2609 4

UNSW CRICOS Provider Code No. 00098G