27 Questions
Where does fertilization typically occur?
In the fallopian tube
What is the structure that forms when the zygote divides by mitosis?
Morula
What is the process where the embryo embeds itself into the endometrium called?
Implantation
What do the villi develop from after implantation?
Chorion
How many umbilical arteries carry deoxygenated blood from the embryo to the placenta?
Two
What is the total number of chromosomes in a zygote after the fusion of the egg cell and sperm cell?
46
During which stage does the zygote first divide by mitosis?
Morula stage
Where does implantation of the embryo take place?
Endometrium
What is the outer membrane from which villi develop known as?
Chorion
Which structure connects the placenta to the embryo?
Umbilical cord
What type of blood does the umbilical vein carry from the placenta to the embryo?
Oxygenated blood
Which stage marks the formation of finger-like structures called villi from the chorion?
Implantation stage
What is the first structure formed after fertilization in human development?
Morula
Which structure in human development is responsible for transporting nutrients and waste between mother and embryo?
Placenta
At what stage does the embryo embed itself into the endometrium of the uterus?
Implantation stage
What is the role of the umbilical arteries in the placental development process?
Transporting deoxygenated blood from the embryo to the placenta
What happens during ovulation in the female reproductive system?
Bursting of a mature Graafian follicle and release of an egg cell
What is the significance of the blastocyst stage in fetal development?
Development into an embryo as it moves towards the uterus
During which stage does the embryo embed itself into the endometrium?
Implantation
What occurs during fertilization in human reproduction?
Fusion of an egg cell and a sperm cell to form a zygote
Why is implantation crucial for successful pregnancy?
It establishes a connection between embryo and placenta.
What is a significant outcome of zygote division by mitosis?
Doubling of chromosome number in cells.
What is the main function of the umbilical vein in the placental system?
Transporting nutrients and waste between the mother and the embryo
What is the significance of the chorion in human development?
Developing into finger-like villi for placental formation
Which stage in human development involves the formation of both a morula and a blastocyst?
Development of the Zygote
What happens in the fallopian tube during early human development?
Fertilization of the egg cell by the sperm cell
What role does mitosis play in the development of a zygote?
Divides the zygote into a morula and then a blastocyst
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