Fetus - Wikipedia
A fetus is a stage in the prenatal development of viviparous organisms. This stage lies between embryogenesis and birth. [ 1 ] Many vertebrates have fetal stages, ranging from most mammals to many fish.
Fetus Definition & Meaning - Merriam-Webster
The meaning of FETUS is an unborn or unhatched vertebrate especially after attaining the basic structural plan of its kind; specifically : a developing human from usually two months after conception to birth.
Embryo vs. Fetus: What’s the Difference? - Healthline
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.
Fetus | Growth, Development, Nutrition | Britannica
Oct 15, 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.
Fetal Development: Week-by-Week Stages of Pregnancy - Cleveland Clinic
Mar 19, 2024 · 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.
Fetal development: The 1st trimester - Mayo Clinic
Jun 3, 2022 · Your baby is now officially described as a fetus. This week your baby's face is broad, the eyes widely separated, the eyelids fused and the ears low set. Buds for future teeth appear. Red blood cells are beginning to form in your baby's liver.
Fetus - Definition, Stages and Development - Biology Dictionary
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 by week: Your baby in the womb - BabyCenter
Feb 21, 2023 · Curious about how your baby is developing in the womb? Here's a breakdown of fetal development week by week.
Fetus Definition and Examples - Biology Online Dictionary
Oct 3, 2023 · A fetus is a developing offspring after the embryonic stage prior to birth. In humans, the young is at nine weeks after fertilization. This fetal period is characterized by the presence of distinct organs, tissues, and systems (e.g., circulatory, nervous, and digestive systems).
Fetal development: The 3rd trimester - Mayo Clinic
Jun 3, 2022 · By now, you're eager to meet your baby face to face. Your uterus, however, is still a busy place. Here's a weekly calendar of events for fetal development during the third trimester. Keep in mind that measurements are approximate.