6 - nat PDF

Title	6 - nat
Course	Human Structure And Function
Institution	University of Melbourne
Pages	39
File Size	1.9 MB
File Type	PDF
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Summary

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Description

BIOM20002'

EMBRYOLOGY)2

Dr'Dagmar'Wilhelm Dept'Anatomy'&'Neuroscience The'University'of'Melbourne [email protected]

Mesoderm Paraxial'mesoderm

Intermediate'mesoderm

Divided'into: ; Paraxial'mesoderm

Lateral'mesoderm

; Intermediate'mesoderm ; Lateral'mesoderm Intermediate'mesoderm

Intraembryonic' body'cavity Endoderm

Paraxial'mesoderm

Somatic' mesoderm Splanchnic' mesoderm

Fate%of%mesoderm Paraxial%mesoderm ! Dermis(of(skin ! Axial(skeleton ! Axial(and(limb(muscles Intermediate%mesoderm ! Urogenital(system Lateral%mesoderm ! Divided(into(somatic((parietal)(and(splanchnic((visceral) ! Ventro!lateral(body(wall((connective(tissue,(not(muscle) ! Heart(and(vasculature ! Wall(of(gut( ! Bones(of(the(limbs Human(Embryology(and(Developmental(Biology,(BM(Carlson(3rd Ed,(Mosby,(1999,(0(323(03649(X(Fig(5.3

Mesoderm Paraxial'mesoderm

Divided'into: 2 Paraxial-mesoderm 2 Intermediate'mesoderm 2 Lateral'mesoderm Paraxial'mesoderm

Paraxial'mesoderm

="somitic"mesoderm

In"trunk"region: Forms"somites,"which"will"produce"muscle,"bone,"and"dermis

Epithelial"phenotype

Mesenchymal"phenotype

MET EMT

(do"not"mix"up"mesenchymal"and"mesodermal"cells)

Somitogenesis

Buckingham+et+al.,+J"Anat,"2003

https://www.youtube.com/watch?v=aR0CLyGFrxo

Somitogenesis Cranial

Cranial

Caudal

Successive( somites

Caudal

Gilbert(”Developmental(Biology”

Somite're)organises into: ) Epithelial'dermamyotome

Somite'differentiation

) Mesenchymal'sclerotome A

B

Neural'tube

Dermamyotome

Somite

Notochord

C

Sclerotome Dermatome Myotome

Sclerotome

Dermis Muscle

Skeletal'elements

Somite'differentiation

Mesoderm Divided*into: 0 Paraxial*mesoderm 0 Intermediate-mesoderm 0 Lateral*mesoderm Intermediate*mesoderm

Intermediate*mesoderm

Intermediate*mesoderm The$urogenital$system: 2 Kidneys 2 Gonads 2 Respective$duct$systems

Larsen’s$Human$Embryology

The$urogenital$system Mesonephric+or+Wolffian+duct

Genital)tracts Müllerian)duct

ce

Müllerian)duct)(=)female)duct)) oviduct,)uterus,)upper)vagina Wolffian)duct)(=)male)duct)) epididymis,)vas)deferens,) seminal)vesicle

Genital(tracts

=+Wolffian+duct

XY

XX AMH testosterone

Coelom

Wolffian+duct+(blind+ended)

Genital+ridge+=+ gonad+anlage

Müllerian+duct+(opening+into+coelom)

XY

XX Testosterone AMH

Oviduct,+uterus,+ upper+vagina

Epididymis,+vas+deferens,+ seminal+vesicle+

AMH+(anti...