Talk:2009 Lab 9

Introduction

File:Eyeear.gif

This section of notes is a introduction to development of senses (sight, smell, hearing and balance) through the development of the specialized sense organs (eye, nose and ear). Portions of the eye, nose and ear appear very early in development as specialized surface regions (placodes) on the embryo, these regions must be connected to the central nervous system by neural pathways that originate as extensions of the central nervous system. There are now more specific notes on each sensory system [ear.htm Hearing and Balance], [eye.htm Vision], [nose.htm Smell] and [tongue.htm Taste] development.

Related Pages: [week4_3.htm Week 4 Sensory Placodes] | [ear.htm Hearing] | [eye.htm Vision] | [nose.htm Smell] | [tongue.htm Taste]

Reading

• Human Embryology (2nd ed.) Larson Ch12: p375-409
• The Developing Human: Clinically Oriented Embryology (6th ed.) Moore and Persaud Ch19: p491-511
• Essentials of Human Embryology Larson Ch12: p252-272
• Before We Are Born (5th ed.) Moore and Persaud Ch20: p460-479
• Human Embryology, Fitzgerald and Fitzgerald
• Search PubMed- Medline

Objectives

• Understand the early development of the eye, defining optic vesicles, optic stalks, optic fissure, optic cups, lens placodes and lens vesicles.
• Understand the development of the retina, ciliary body, iris, lens, choroid, sclera and cornea.
• Understand the development of external, middle and internal ear, including otic placode, otocyst, endolymphatic duct and semicircular canals.

Computer Activities

UNSW Embryology:

• Stage 13/14 Embryo
  • Eye | Ear | Nose
• Stage 22 Embryo
  • Eye | Ear | Nose
• Selected High Power Stage 22
  • Eye | Ear
• Hearing and Balance development
• Components of the Eye
• Histology also look at WWW Links
• Serial Sections
  • Human Selected([../wwwhuman/hipower/HumA/A5L.htm optic nerve], optic retina, lens)
  • Stage 22 Head Images
  • Stage 13/14 Head Images
  • Human Systems

Embryo Images Unit:

Eye Development and Ear Development

Embryo Images Online

Links below require Internet connection.

• Eye Development
  • Eye Fields-Optic Vesicle (Weeks 3-4)
  • Optic Cup, Lens Vesicle, Choroid Fissure, Hyaloid Artery (Weeks 5-6)
  • Cornea, Anterior Chamber, Pupillary Membrane, Lens, Retina (Weeks 7-8)
  • Iris, Cilliary Body (Weeks 9-15)
  • Eyelids (Weeks 8-10)
• Ear Development
  • Inner Ear
  • Middle Ear
  • External Ear

References

For more recent review and research articles see specific notes on each Sensory System [ear.htm Hearing] | [eye.htm Vision] | [nose.htm Smell] | [tongue.htm Taste]

Selected Lists of References from PubMed March 1999 search results are available for Department of Anatomy computers without internet access. Computers with internet access can search from either Page 2 or PubMed Internet Access

PubMed March 1999[../Refer/senses/eye_rev.htm Eye Development Reviews] | [../Refer/senses/ear_rev.htm Ear Development Reviews] | [../Refer/senses/nose_rev.htm Nose Development Reviews] | [../Refer/senses/select.htm Selected Research Articles and Reviews]

Developmental Overview

Note these images are not to scale. Clicking each image will show full embryo.

File:CSt16.gifFile:CSt17.gifCarnegie Stage 15

Carnegie Stage 16

Carnegie Stage 17

File:CSt19.gifFile:CSt20.gifCarnegie Stage 18

Carnegie Stage 19

Carnegie Stage 20

File:CSt22.gifFile:CSt23.gifCarnegie Stage 21

Carnegie Stage 22

Carnegie Stage 23

File:Mov.gif See [../Movies/CSthead.mov Movie of these Head images (179 Kb)]

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.

[Index/B.htm B] | [Index/C.htm C] | [Index/D.htm D] | [Index/E.htm E] | [Index/F.htm F] | [Index/G.htm G] | [Index/H.htm H] | [Index/I.htm I] | [Index/J.htm J] | [Index/K.htm K] | [Index/L.htm L] | [Index/M.htm M] | [Index/N.htm N] | [Index/O.htm O] | [Index/P.htm P] | [Index/Q.htm Q] | [Index/R.htm R] | [Index/S.htm S] | [Index/T.htm T] | [Index/U.htm U] | [Index/V.htm V] | [Index/W.htm W] | [Index/X.htm X] | [Index/Y.htm Y] | [Index/Z.htm Z]

Quick Links

UNSW Embryology ISBN: 978 0 7334 2609 4

UNSW CRICOS Provider Code No. 00098G

Navigation

[../embryo.htm Home Page][../wwwhuman/Stages/Stages.htm Embryo stages][../wwwhuman/Fetus.htm Fetal Dev][../devnote.htm Dev Notes 1][../devnote2.htm Dev Notes 2][../sysnote.htm System Notes][../People.htm Acknowledgements]

Internal Links Senses

IntroductionAbnormalitiesOMIMQuestionsMedlinePig Stage 13/14Human (Stage22)Selected Human highpower[placode.htm Sensory Placodes][ear.htm Hearing][eye.htm Vision][tongue.htm Taste]Text only pageWWW Links

Internal Links

[../Movies/Movies.htm Movies][../Podcast/podcast.htm Audio][../News/news.htm News][../class.htm Class Notes][../Series.htm Serial Images][../K12/embryo.htm K12 Students][../Defect/page1.htm Abnormal][../histo.htm Histology][../sitemap.htm Site Map][Index/Index.htm Glossary][../Refer/refer.htm References][../Refer/search.htm Search]

External Links

School of Med SciUNSW MedicineUniversity of NSWUNSW Cell BiologyNCBI BooksDev Biol (Gilbert)2009-10-01T12:38:01Search Google

File:Logo PoweredBy 25wht.gif Search GoogleSearch NCBI

Comments

These notes introduce the development of the senses. Our senses are a combination of several different embryonic tissues, which for us to "sense" must also connect with the central nervous system.

This general section of sensory notes provides a brief introduction. More detailed information can be found on the specific sensory sysstem pages [ear.htm Hearing] | [eye.htm Vision] | [nose.htm Smell] | [tongue.htm Taste].

File:Retsm.gif the retina by Santiago Ramón y Cajal (c1900)