Trophoblast (Trophectoderm)
Trophoblast is cell of blastocyst.
Trophoblast differentiated into;
1. Cytotrophoblast or Langhan’s layer
2. Syncytitrophoblast
Local cytokines regulate invasion of the cytotrophoblast in decidua.
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Diagnosis of Pregnancy
Diagnosis of Pregnancy 1. First trimester (0-3 months) First 12 weeks 1. Subjective symptoms 2. Objective symptoms 1. Subjective symptoms a. Amenorrhea b. Morning sickness/nausea
