Describe the 1st, 2nd and 3rd trimester of pregnancy and draw flow chart.
Understanding the stages of pregnancy is crucial for expectant parents and healthcare professionals alike. The three trimesters of pregnancy are distinct phases, each marked by unique developmental milestones for both the mother and the growing fetus.
First Trimester (Week 1 to Week 12):
The first trimester is a critical period during which the foundation for fetal development is laid. Here are the key events:
1. Conception and Implantation (Week 1-2): The first trimester begins with the start of the woman's last menstrual period. Conception typically occurs around the end of the second week, when sperm fertilizes the egg. The fertilized egg then implants itself into the uterus.
2. Cell Division and Differentiation (Week 3-4): Rapid cell division occurs, and the fertilized egg transforms __________ _______ _______ ________ ________ ______ __________ ___ ___ ___ ______ _________.
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