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A fetus or foetus (/ ˈ f iː t ə s /; pl.: fetuses, foetuses, rarely feti or foeti) is the unborn mammalian offspring that develops from an embryo. [1] Following the embryonic stage , the fetal stage of development takes place.
Apr 12, 2023 · During each week of pregnancy, your baby is growing. Here’s a look at what medical terms like embryo and fetus mean in terms of development.
Feb 21, 2023 · Use this timeline to learn what your baby's up to and how they're developing throughout pregnancy. Follow your baby's development week by week, from conception to labor, in these amazingly detailed, doctor-reviewed images. Your egg is fertilized 12 to 24 hours later if a sperm penetrates it.
Jul 6, 2017 · Fetus Definition. Fetal development occurs between the embryonic stage of development and birth in humans. This stage begins after 11 weeks of gestation, when the embryo begins to exhibit human characteristics, and lasts until birth.
Fetal development is how a fetus grows during pregnancy. It begins at conception and ends at birth. Many changes occur to the fetus and the pregnant person in this time.
Aug 23, 2024 · fetus, the unborn young of any vertebrate animal, particularly of a mammal, after it has attained the basic form and structure typical of its kind. A brief treatment of the fetus follows. For more information on the human fetus, see pregnancy.
Defining the Fetal Stage. A fetus is a prenatal human being between the embryonic stage and birth. The fetal stage extends from the beginning of the ninth week after fertilization to about 38 weeks after fertilization, which is the average time of birth. The fetal stage lasts a total of approximately 30 weeks.
At two months it is called a fetus. When the embryo attaches to the uterus, a complex structure of vessels and cells forms, which is called the placenta. A network of the embryo's blood vessels closely intermingles next to the mother's blood supply.
Jul 8, 2024 · An embryo and a fetus are different stages of your baby’s development during pregnancy. The embryonic stage happens first and lasts through week 10. The fetal stage comes next and lasts from the end of week 10 until you give birth.
May 21, 2024 · Briefly describe the process of sexual differentiation. Describe the fetal circulatory system and explain the role of the shunts. Trace the development of a fetus from the end of the embryonic period to birth. As you will recall, a developing human is called a fetus from the ninth week of gestation until birth.
