Talk:2010 BGD Practical - Fetal Development: Difference between revisions

Latest revision as of 09:01, 24 September 2010

The fetal period (9-36 weeks) is about continued differentiation of organs and tissues, most importantly this period is about growth both in size and weight. The tables showing second and third trimester on this page are to indicate some selected systems developmental changes, you are not required to know detailed timings or events.

2010 BGD Practical 12 - Embryo to Fetus

Week 8 Stage 23
Week 10 Fetus

2010 BGD Practical 12 - Second Trimester

Early fetal - week 10, week 12
placental changes and fetal membrane changes
length changes
clinical diagnosis (ultrasound), genetic
survival issues for early delivery
Fetal Endocrine

2010 BGD Practical 12 - Third Trimester

Fetal Neural
Fetal Respiratory
Fetal Cardiovascular

fetal weight
fetal origins hypothesis
parturition
neonatal issues

2010 BGD Practical 12 - Abnormalities

UNSW Embryology - Abnormal Development Tutorial - Applied Embryology and Teratology

Teratology

2010 BGD Practical 12 - Birth

Embryonic Week 8

Fetal Week 10

Week 10, 40 mm, female fetus, early fetal stage of development

Fetal Week 12

Second Trimester

Third Trimester

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 The fetal period (9-36 weeks) is about continued differentiation of organs and tissues, most importantly this period is about growth both in size and weight. The tables showing second and third trimester on this page are to indicate some selected systems developmental changes, you are not required to know detailed timings or events.
-==Topics==
-===Second Trimester===
-* Early fetal - week 10, week 12
-* placental changes and fetal membrane changes
-* length changes
-* clinical diagnosis (ultrasound), genetic
-* survival issues for early delivery
-===Third Trimester===
-* fetal weight
-* fetal origins hypothesis
-* parturition
-* neonatal issues
 ----
-Embryonic Week 8
-Fetal Week 10
-Week 10, 40 mm, female fetus, early fetal stage of development
-Fetal Week 12
-Second Trimester
+[[2010 BGD Practical - Fetal Development|Practical 12]]: [[2010 BGD Practical 12 - Embryo to Fetus|Embryo to Fetus]] | [[2010 BGD Practical 12 - Second Trimester|Second Trimester]] | [[2010 BGD Practical 12 - Third Trimester|Third Trimester]] | [[2010 BGD Practical 12 - Birth|Birth]] | [[2010 BGD Practical 12 - Neonatal|Neonatal]] | [[2010 BGD Practical 12 - Abnormalities|Abnormalities]]
-Third Trimester
-[[File:Fetal_size_change.jpg|300px|right]]
+----
-==Introduction==
-This page shows some key events of human development during the fetal period (weeks 9 to 37) following fertilization. Clinically this period is generally described as the [[Second Trimester]] and [[Third Trimester]]. Many of the critical measurements of growth are now carried out by [[ultrasound]] and this period ends at [[Birth|birth]].
-'''Links:''' [[2009_Lecture_22|Lecture - Fetal Development]] | [http://embryology.med.unsw.edu.au/wwwhuman/Fetus.htm original page]
-<Flowplayer height="300" width="285" autoplay="true">fetal growth.flv</Flowplayer>
-Animation shows the changing proportions of the fetus, not the growth in size.
+[[2010 BGD Practical 12 - Embryo to Fetus]]
-Many different systems formed in the embryonic period (organogenesis) grow and differentiate further during the fetal period and do so at different times. For example, the brain continues to grow and develop extensively during this period (and postnatally), the respiratory system differentiates (and completes only just before birth), the urogenital system further differentiates between male/female, endocrine and gastrointestinal tract begins to function.
+* Week 8 Stage 23
+* Week 10 Fetus
-The Embryonic period involved transient structures to establish body and placental tissues, folding and form.
+[[2010 BGD Practical 12 - Second Trimester]]
-The long Fetal period (4x the embryonic period) is a time of extensive growth in size and mass as well as ongoing differentiation of organ systems established in the embryonic period.
+* Early fetal - week 10, week 12
+* placental changes and fetal membrane changes
+* length changes
+* clinical diagnosis (ultrasound), genetic
+* survival issues for early delivery
+* Fetal Endocrine
-Also consider the systems (respiratory, cardiac, neural) that will still not have their final organization and function determined until after birth.
+[[2010 BGD Practical 12 - Third Trimester]]
-==Reading==
+* Fetal Neural
+* Fetal Respiratory
+* Fetal Cardiovascular
-* Human Embryology (3rd ed.) Larson Ch15: Fetal development and the Fetus as Patient p481-499
+* fetal weight
-* Color Atlas of Clinical Embryology (2nd ed.) Moore, Persaud and Shiota Ch3: 9th to 38th weeks of human development p50-68
+* fetal origins hypothesis
+* parturition
+* neonatal issues
-== Second Trimester ==
+[[2010 BGD Practical 12 - Abnormalities]]
-[[Image:Ultrasound12wk 3D image.jpg|thumb|Fetus - second trimester (ultrasound)]]
-* [[Second Trimester]]
+[http://embryology.med.unsw.edu.au/Defect/page1.htm UNSW Embryology - Abnormal Development] [http://embryology.med.unsw.edu.au/Medicine/BGD2tutorial.htm Tutorial - Applied Embryology and Teratology]
-* Week 12 - CRL 85 mm, femur length 15 mm, biparietal diameter 25 mm.
-== Third Trimester ==
+* Teratology
-[[Image:Frazer006 bw600.jpg|thumb|Fetus - third trimester (historic image)]]
-* [[Third Trimester]]
+[[2010 BGD Practical 12 - Birth]]
-* Vibration acoustically of maternal abdominal wall induces startle respone in fetus.
-* Month 7 - respiratory bronchioles proliferate and end in alveolar ducts and sacs.
-* Week 37 to 38 [[Birth]].
-== References ==
+----
-<references/>
+Embryonic Week 8
-===Reviews===
+Fetal Week 10
-* Fetal assessment during pregnancy. Farley D, Dudley DJ. Pediatr Clin North Am. 2009 Jun;56(3):489-504, Table of Contents. Review. [http://www.ncbi.nlm.nih.gov/pubmed/19501688 PMID: 19501688]
-* Regimens of fetal surveillance for impaired fetal growth. Grivell RM, Wong L, Bhatia V. Cochrane Database Syst Rev. 2009 Jan 21;(1):CD007113. Review. [http://www.ncbi.nlm.nih.gov/pubmed/19160321 PMID: 19160321]
-===Articles===
+Week 10, 40 mm, female fetus, early fetal stage of development
-===Search PubMed===
+Fetal Week 12
+Second Trimester
-'''Search Pubmed:''' [http://www.ncbi.nlm.nih.gov/sites/entrez?db=pubmed&cmd=search&term=fetal+development fetal+development] | [http://www.ncbi.nlm.nih.gov/sites/entrez?db=pubmed&cmd=search&term=Second+Trimester Second Trimester] | [http://www.ncbi.nlm.nih.gov/sites/entrez?db=pubmed&cmd=search&term=Third+Trimester Third Trimester]
+Third Trimester