BGDB Practical - Sexual Differentiation: Difference between revisions
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'''Key Concepts:''' | '''Key Concepts:''' {{primordial germ cell}}, sex chromosomes, gonad, internal genitalia, external genitalia, {{ovary}}, {{testis}}, {{puberty}}, hormonal changes, gametogenesis, {{genital abnormalities}} ({{DSD}}). | ||
==Background== | ==Background== | ||
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* [[Carnegie stage 23|56 days]] - paramesonephric duct fusion (female) | * [[Carnegie stage 23|56 days]] - paramesonephric duct fusion (female) | ||
* 100 days - primary follicles (ovary) | * 100 days - primary follicles (ovary) | ||
* postnatal 2 months of age - male primordial germ cells (gonocytes) are replaced by adult dark (Ad) and pale (Ap) spermatogonia forming the spermatogonial stem cell (SSC) population. | |||
==Textbooks== | ==Textbooks== | ||
{| | {| | ||
! Textbooks | |||
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| [[File:Logo.png|80px]] | | [[File:Logo.png|alt=Embryo logo|80px]] | ||
| {{Embryo citation}} | | {{Embryo citation}} | ||
{{Genital Links}} | |||
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| [[File:The Developing Human, 10th edn.jpg|90px]] | |||
| {{MPT2015APAcitation}} (links only function with UNSW connection) | |||
Chapter 12 [http://www.unsw.eblib.com.wwwproxy0.library.unsw.edu.au/patron/Read.aspx?p=2074364&pg=329 Urogenital System] | |||
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| [[File: | | [[File:Larsen's human embryology 5th ed.jpg|90px]] | ||
| | | {{Larsen2015APAcitation}}(links only function with UNSW connection) | ||
Chapter 15 [http://www.unsw.eblib.com.wwwproxy0.library.unsw.edu.au/patron/Read.aspx?p=2074524&pg=393 Development of the Urinary System] | |||
Chapter 16 [http://www.unsw.eblib.com.wwwproxy0.library.unsw.edu.au/patron/Read.aspx?p=2074524&pg=412 Development of the Reproductive System] | |||
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| [[File: | | [[File:Endocrinology - An Integrated Approach.png|80px]] | ||
| | | Nussey, S and Saffron Whitehead, S. <i>Endocrinology: An Integrated Approach</i>. Oxford: BIOS Scientific Publishers; 2001. | ||
Chapter 6 [http://www.ncbi.nlm.nih.gov/books/NBK29 The gonad] | |||
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Latest revision as of 11:46, 1 June 2019
Introduction
Practical 12: Sex Determination | Early Embryo | Late Embryo | Fetal | Postnatal | Abnormalities | 2011 Audio |
This practical will introduce the topic of sexual differentiation during development through a series of online resource pages.
Aim: This practical is an introduction to the earliest events in Sexual Differentiation.
Key Concepts: primordial germ cell, sex chromosomes, gonad, internal genitalia, external genitalia, ovary, testis, puberty, hormonal changes, gametogenesis, genital abnormalities (DSD).
Background
Genital Timeline
These are approximate timings and stages only.
- 24 days - intermediate mesoderm, pronephros primordium
- 28 days - mesonephros and mesonephric duct
- 35 days - uteric bud, metanephros, urogenital ridge
- 42 days - cloacal divison, gonadal primordium (indifferent)
- 49 days - paramesonephric duct, gonadal differentiation
- 56 days - paramesonephric duct fusion (female)
- 100 days - primary follicles (ovary)
- postnatal 2 months of age - male primordial germ cells (gonocytes) are replaced by adult dark (Ad) and pale (Ap) spermatogonia forming the spermatogonial stem cell (SSC) population.
Textbooks
Practical 12: Sex Determination | Early Embryo | Late Embryo | Fetal | Postnatal | Abnormalities | 2011 Audio |
BGDB: Lecture - Gastrointestinal System | Practical - Gastrointestinal System | Lecture - Face and Ear | Practical - Face and Ear | Lecture - Endocrine | Lecture - Sexual Differentiation | Practical - Sexual Differentiation | Tutorial
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, June 16) Embryology BGDB Practical - Sexual Differentiation. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/BGDB_Practical_-_Sexual_Differentiation
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G