2011 Lab 10: Difference between revisions

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=Endocrine and Integumentary=
{{2011Lab10}}


{{Endocrine Links}}
==Introduction==
 
[[File:Stage14 sem2cl.jpg|thumb|Human embryo sensory placodes ([[Week 5]], [[Carnegie stage 14|stage 14]])]]
{{Integumentary Links}}
This practical will introduce the development of the special sensory structures associated with hearing, vision, smell and taste. This topic is closely related to neural development through the fetal and postnatal periods.
 
 
==Endocrine==
[[File:Stage 22 image 221.jpg|thumb|Developing Pituitary - Human Embryo Carnegie stage 22]]
* Begin by working through [[Endocrine_System_-_Carnegie_Stage_22|Endocrine Development by week 8]].
* Then look at the information on each endocrine organ on their information page.
 
==Integumentary==
===Teeth===
[[File:Fetal_head_lateral.jpg|thumb|Fetal Head (12 weeks) lateral]]
[[File:Deciduous teeth.jpg|thumb|Deciduous teeth]]
[[File:Permanent teeth.jpg|thumb|Permanent teeth]]
* integumentary system specialization by epitheilal/mesenchymal interactions in development and develops with a major contribution from the neural crest.
** ectoderm of the first pharyngeal arch and neural crest, ectomesenchymal cells.
* week 6 - odontogenesis begins, tooth bud
* 4 morphological stages describing the early tooth development: bud, cap, bell, and terminal differentiation
* 2 sets of teeth: 20 deciduous teeth, 32 permanent teeth
* differential rates of growth, shed at different times over 20 year period
* ectoderm, mesoderm and neural crest mesenchyme contribute
* inductive influence of neural crest with overlying ectoderm
* tooth growth occurs in ossifying jaws 
 
'''odontoblasts''' - neural crest-derived mesenchymal cells which differentiate under the influence of the enamel epithelium. Cells secrete predentin, calcifies to form dentin.
 
'''ameloblasts''' - inner enamel epithelium forms pre-ameloblasts differentiate and produce enamel
 
'''periodontal ligament''' - tooth is not anchored directly onto its bony socket (alveolar bone) but held in place by the periodontal ligament (PDL), a specialized connective tissue structure that surrounds the tooth root coating of cementum.
* ligament also act as; a shock absorber, transmitter of chewing forces (from tooth to bone), sensory information (heat, cold, pressure and pain).
** collagen fiber bundles within the ligament are called "Sharpey's fibres".
 
'''Tooth Stages'''
 
[[File:Tooth_development_stage.jpg|thumb|Tooth development stages<ref name="PMID19266065"><pubmed>19266065</pubmed>| [http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=2651620&tool=pmcentrez PMCID: PMC2651620]</ref>]]


{|
{|
|-bgcolor="CEDFF2"
| [[File:Hearing cartoon.jpg|160px|link=Sensory_-_Hearing_and_Balance_Development]]
| width= 100px |'''Stage'''
| [[File:Stage_22_image_153.jpg|160px|link=Sensory_-_Vision_Development]]
| width= 210px |<center>'''Image'''</center>
| [[File:Stage_22_image_209.jpg|160px|link=Sensory_-_Smell_Development]]
| width= 100px |'''Human''' (weeks)
| [[File:Tongue_-_taste_cartoon.jpg|160px|link=Sensory - Taste Development]]
| width= 100px |'''[[Mouse Development|Mouse]]''' (days)
|-
| lamina
| [[File:Tooth stage lamina.jpg|200px|lamina]]
| [[Week 6]]
| [[Mouse_Timeline_Detailed#Day_11_.28E11.0.29|E11]]
|-bgcolor="F5FAFF"
| placode
| [[File:Tooth placode stage.jpg|200px|placode stage]]
| [[Week 7]]
| [[Mouse_Timeline_Detailed#Day_11.5_.28E11.5.29|E11.5]]
|-
| bud
| [[File:Tooth bud stage.jpg|200px|bud stage]]
| [[Week 8]]
| E[[Mouse_Timeline_Detailed#Day_12_.28E12.0.29|12.5]]
|-bgcolor="F5FAFF"
|cap
| [[File:Tooth cap stage.jpg|200px|cap stage]]
| Week 11
| [[Mouse_Timeline_Detailed#Day_14_.28E14.0.29|E14.5]]
|-
|-
| bell
| <center>[[Sensory_-_Hearing_and_Balance_Development|Hearing Development]]</center>
| [[File:Tooth bell stage.jpg|200px|bell stage]]
| <center>[[Sensory_-_Vision_Development|Vision Development]]</center>
| Week 14
| <center>[[Sensory_-_Smell_Development|Smell Development]]</center>
| [[Mouse_Timeline_Detailed#Day_15_.28E15.0.29|E15.5]]
| <center>[[Sensory - Taste Development|Taste Development]]</center>
|-bgcolor="F5FAFF"
|
|
|
|}
|}


=== Teeth Postnatal ===
==Textbooks==
Deciduous teeth
{|
* '''6 - 24 months''' - erupt from gums by pushing toward surface
| [[File:The Developing Human, 8th edn.jpg|80px]]
* '''2 years''' - all deciduous teeth present
| Moore, K.L. &amp; Persuad, T.V.N. (2008). <i>The Developing Human: clinically oriented embryology</i> (8<sup>th</sup> ed.). Philadelphia: Saunders.
 
The following chapter links only work with a UNSW connection and can also be accessed through this  [http://searchfirst.library.unsw.edu.au/primo_library/libweb/action/search.do?vid=UNSW&amp;fn=search&amp;vl(freeText0)=UNSW_SFX14190000000048007 UNSW Library connection].
* [http://www.mdconsult.com/books/linkTo?type=bookPage&amp;isbn=978-1-4160-3706-4&amp;eid=4-u1.0-B978-1-4160-3706-4..50012-8 Chapter 9 - The Pharyngeal Apparatus]
* [http://www.mdconsult.com/books/linkTo?type=bookPage&amp;isbn=978-1-4160-3706-4&amp;eid=4-u1.0-B978-1-4160-3706-4..50021-9 Chapter 18 - The Eye and Ear]
|-
| [[File:Larsen's human embryology 4th edn.jpg|80px]]
| Schoenwolf, G.C., Bleyl, S.B., Brauer, P.R. and Francis-West, P.H. (2009). <i>Larsen’s Human Embryology</i>  (4<sup>th</sup> ed.). New York; Edinburgh: Churchill Livingstone.


Permanent teeth
The following chapter links only work with a UNSW connection and can also be accessed through this [http://searchfirst.library.unsw.edu.au/primo_library/libweb/action/search.do?vid=UNSW&fn=search&vl(freeText0)=UNSW_SFX14190000000047996 UNSW Library connection].
* 6 years until early adult
* [http://www.mdconsult.com/books/linkTo?type=bookPage&isbn=978-0-443-06811-9&eid=4-u1.0-B978-0-443-06811-9..10016-8 Chapter 16 - Development of the Pharyngeal Apparatus and Face]
* tooth bud lie in gums beneath deciduous teeth
* [http://www.mdconsult.com/books/linkTo?type=bookPage&isbn=978-0-443-06811-9&eid=4-u1.0-B978-0-443-06811-9..10017-X Chapter 17 - Development of the Ears and Eye]
* osteoclasts resorb deciduous teeth roots
|-
* growth affects face shape
| [[File:Logo.png|80px]]
| Hill, M.A. (2011) <i>UNSW Embryology</i> (11<sup>th</sup> ed.). Sydney:UNSW.
* [[Media:BGDB PracManual 2011 Practical 6.pdf|BGDB Practical Manual 2011 Practical 6]]
* {{Template:Senses Links}}


:'''Links:''' [[Integumentary_System_-_Tooth_Development|Tooth Development]]
|}


==SOMS Summer Research Awards==


* The Research Support Committee is pleased to announce that it will again be offering Summer Research Awards (SRAs).
* These awards are for undergraduate students carrying out supervised research in SOMS between November 2011 and February 2012.
* Successful students will receive $250 per week for 6 weeks of research. [http://medicalsciences.med.unsw.edu.au/SOMSWeb.nsf/page/Summer%20Research%20Awards More Information?]


{{2011Lab10}}


{{2011ANAT2341}}
{{2011ANAT2341}}

Latest revision as of 14:27, 5 October 2011

2011 Lab 10: Introduction | Early Embryo | Late Embryo | Fetal | Postnatal | Abnormalities | Online Assessment

Introduction

Human embryo sensory placodes (Week 5, stage 14)

This practical will introduce the development of the special sensory structures associated with hearing, vision, smell and taste. This topic is closely related to neural development through the fetal and postnatal periods.

Hearing cartoon.jpg Stage 22 image 153.jpg Stage 22 image 209.jpg Tongue - taste cartoon.jpg
Hearing Development
Vision Development
Smell Development
Taste Development

Textbooks

The Developing Human, 8th edn.jpg Moore, K.L. & Persuad, T.V.N. (2008). The Developing Human: clinically oriented embryology (8th ed.). Philadelphia: Saunders.

The following chapter links only work with a UNSW connection and can also be accessed through this UNSW Library connection.

Larsen's human embryology 4th edn.jpg Schoenwolf, G.C., Bleyl, S.B., Brauer, P.R. and Francis-West, P.H. (2009). Larsen’s Human Embryology (4th ed.). New York; Edinburgh: Churchill Livingstone.

The following chapter links only work with a UNSW connection and can also be accessed through this UNSW Library connection.

Logo.png Hill, M.A. (2011) UNSW Embryology (11th ed.). Sydney:UNSW.
Senses Links: Introduction | placode | Hearing and Balance hearing | balance | vision | smell | taste | touch | Stage 22 | Category:Sensory


2011 Lab 10: Introduction | Early Embryo | Late Embryo | Fetal | Postnatal | Abnormalities | Online Assessment

Co-ordinator Note

Mhicon08.jpg

Dr Mark Hill

ANAT2341 Embryology S2 2011
--Mark Hill 06:47, 20 July 2011 (EST)

Course Content 2011

2011 Timetable: | Embryology Introduction | Fertilization | Cell Division/Fertilization | Week 1 and 2 Development | Week 3 Development | Week 1 to 3 | Mesoderm Development | Ectoderm, Early Neural, Neural Crest | Trilaminar Embryo to Early Embryo | Early Vascular Development | Placenta | Vascular and Placenta | Endoderm, Early Gastrointestinal | Respiratory Development | Endoderm and Respiratory | Head Development | Neural Crest Development | Head and Neural Crest | Musculoskeletal Development | Limb Development | Musculoskeletal | Renal Development | Genital | Kidney and Genital | Sensory | Stem Cells | Stem Cells | Endocrine Development | Endocrine | Heart | Integumentary Development | Heart and Integumentary | Fetal | Birth and Revision | Fetal

Glossary Links

Glossary: 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 | Symbols | Term Link

Cite this page: Hill, M.A. (2024, May 19) Embryology 2011 Lab 10. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/2011_Lab_10

What Links Here?
© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G