Template:Week 1 table

From Embryology
Week 1 (GA Clinical week 3)
Week 1 of fertilisation age begins on the day of fertilisation, while the clinical gestational age (GA) is measured from the first day of the last menstrual period (LMP).

Concepts

  • Gametogenesis (Oocyte and Spermatozoa), Meiosis, Menstrual Cycle
  • Fertilisation, Zygote, Zona Pellucida, Polar Body, Mitosis, X inactivation
  • Blastomeres, Morula, Blastocyst (Inner cell mass and Trophoblast), Twinning
Week1 summary catroon

Week 1 summary

Week 1 Timeline  
Day Carnegie
Stage
Concepts
1 1 Zygote, Menstrual Cycle - Secretory Phase
2 2 Morula, Mitosis
3-5 3 Blastocyst
Week 1 Links: stage 1 | stage 2 | stage 3 | menstrual cycle | fertilization | zygote | morula | blastocyst | Lecture - Fertilization | meiosis | mitosis | Lecture - Week 1 and 2 | menstrual cycle | oocyte | spermatozoa | twinning | Genetic risk maternal age | Trisomy 21 | Trisomy 18 | Trisomy 13 | hydatidiform mole | GA week 3



Day
Stage
Event
1
Secretory Phase

Stage 1

Early zygote.jpg Stage1 size with ruler.jpgSmear- secretory.jpg Human- secretory uterine endometrium.jpg Fertilization, Secretory Phase
2
Stage 2 Stage2.jpg Week1 001 icon.jpg Morula, Blastula
3
  Human-blastocyst-day-3-6-icon.jpg Blastocyst Development
4
Stage 3 CSt3.jpg Blastocyst Hatching (zona pellucida lost)
5
  Smear- late secretory.jpg Human- late secretory uterine endometrium.jpg Late Secretory, Blastocyst (free floating)
6
Stage 4 Adplantation
7
Stage 5 Week2 001 icon.jpgStage5 bf11L.jpg