2010 BGD Practical 12 - Third Trimester: Difference between revisions
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* Respiratory Week 24 to 40 lung histology - terminal sac, end month 6 alveolar cells type 2 appear and begin to secrete surfactant | * Respiratory Week 24 to 40 lung histology - terminal sac, end month 6 alveolar cells type 2 appear and begin to secrete surfactant | ||
==Week 30== | |||
* Gonad - male gonad (testes) descending | * Gonad - male gonad (testes) descending | ||
Revision as of 08:05, 25 May 2010
Practical 12: Embryo to Fetus | Second Trimester | Third Trimester | Birth | Neonatal | Abnormalities
Introduction
- Fetal Neural
- Fetal Respiratory
- Fetal Cardiovascular
- survival issues for early delivery
- fetal weight
- fetal origins hypothesis
Week 24+
- Earliest potential survival expected if born
- Respiratory Week 24 to 40 lung histology - terminal sac, end month 6 alveolar cells type 2 appear and begin to secrete surfactant
Week 30
- Gonad - male gonad (testes) descending
Practical 12: Embryo to Fetus | Second Trimester | Third Trimester | Birth | Neonatal | Abnormalities
Additional Information
The following information is a detailed timeline of third trimester development and content does not form part of the current practical class.
Third Trimester
(Clinical Week 28)
| Event | ||
| Clinical third trimester |  Sense - Hearing 3rd Trimester - vibration acoustically of maternal abdominal wall induces startle respone in fetus.
| |
| Respire Month 7 - respiratory bronchioles proliferate and end in alveolar ducts and sacs | ||
|
Genital male gonad (testes) descending | ||
| Neural brain cortical sulcation - primary sulci present PMID:11158907 | ||
| Neural brain cortical sulcation - insular, cingular, and occipital secondary sulci present PMID:11158907 | ||
| ||
| Birth |  Clinical Week 40
Heart pressure difference closes foramen ovale leaving a fossa ovalis Thyroid TSH levels increase, thyroxine (T3) and T4 levels increase to 24 h, then 5-7 days postnatal decline to normal levels Adrenal - zona glomerulosa, zona fasiculata present
|
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
- 2010 BGD: Lecture 1 | Lecture 2 | Practical 3 | Practical 6 | Practical 12
Cite this page: Hill, M.A. (2024, April 19) Embryology 2010 BGD Practical 12 - Third Trimester. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/2010_BGD_Practical_12_-_Third_Trimester
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G
