Podcast
Questions and Answers
What occurs on Day 4 of embryonic development?
What occurs on Day 4 of embryonic development?
- Embryo development. (correct)
- Morula formation.
- Blastocyst detachment.
- Formation of the zygote.
Which statement is true regarding the development of the blastocyst?
Which statement is true regarding the development of the blastocyst?
- The blastocyst forms on Day 3 and implants on Day 6.
- The blastocyst does not form until after the placenta is established.
- The blastocyst develops and then detaches from the zona pellucida on Day 5. (correct)
- The blastocyst is formed after the zygote has segmented.
During which stage of embryonic development does nutrient exchange begin?
During which stage of embryonic development does nutrient exchange begin?
- Day 5
- Day 7 (correct)
- Day 6
- Day 4
What defines the morula stage in embryonic development?
What defines the morula stage in embryonic development?
Which day marks the formation of the placenta?
Which day marks the formation of the placenta?
Study Notes
Embryonic Development: Day 1-7
- Day 1: A zygote forms when genetic material from both parents fuses, marking the beginning of embryonic development.
- Day 2: The zygote begins to segment, dividing into multiple cells through cell division.
- Day 3: A morula forms, a compact sphere of cells resulting from continued cell division.
- Day 4: Embryonic development progresses, with further cell division and differentiation.
- Day 5: A blastocyst develops, a hollow sphere of cells with an inner cell mass, surrounded by the zona pellucida.
- Day 6: The blastocyst detaches from the zona pellucida and implants in the endometrium, the lining of the uterus.
- Day 7: The placenta begins to form, establishing nutrient exchange between the mother and the developing embryo.
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Description
Explore the fascinating journey of embryonic development from the formation of the zygote to the implantation of the blastocyst. This quiz covers crucial stages such as cell division, the formation of the morula and blastocyst, and the initial steps of placenta formation. Test your understanding of these early developmental processes.
