Week 2

Lab 2 & 3 - Early Development and Organization of the Body

Terms

  • Somites / Paraxial Mesoderm / Epimere
  • Segmentation
  • Neural Groove
  • Neural Folds
  • Dorsal Hollow Nerve Tube (Neural Tube)
  • Notochord (Chordamesoderm)
  • Gut Tube
  • Dorsal Aorta
  • Coelomic Space
  • Lateral Plate Mesoderm / Hypomere
  • Intermediate Mesoderm / Mesomere
  • Epidermal Ectoderm
  • Neural Crest Ectoderm
  • Neural Ectoderm
  • Neural Plate
  • Vitelline Artery and Vein
  • Paraxial Mesoderm
  • Dermatome
  • Myotome
  • Sclerotome
  • Otic Vesicle
  • Optic Cup
  • Segmental vs. trans-segmental structures

 

Identify the following on the slides and pictures

24 hour whole mount

  • Somites / Paraxial Mesoderm / Epimere
  • Neural folds
  • Neural groove

33 hour whole mount

  • Head
  • Optic vesicle
  • Heart
  • Somites
  • Dorsal Hollow Nerve Tube
  • Vitelline vein

33 hour serial sections

  • Dorsal hollow nerve tube
  • Epidermal ectoderm
  • Notochord
  • Gut tube
  • Heart
  • Somite / Paraxial Mesoderm / Epimere
  • Coelomic space
  • Lateral plate mesoderm / hypomere
  • Intermediate Mesoderm / mesomere
  • Endoderm

48 hour whole mount

  • Somites
  • Brain
  • Heart
  • Otic vesicle
  • Optic cup
  • Vitelline artery & vein

48 hour serial sections

  • Somites
  • Aorta
  • Coelomic space
  • Gut tube
  • Dorsal hollow nerve tube
  • Segmental arteries

72 hour serial sections

  • Somite
  • Dermatome
  • Myotome
  • Sclerotome