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Use this interactive prenatal timeline to learn about the stages of pregnancy from conception to birth. This versatile tool features movies, images, facts, and even quiz questions.
This lecture is going to take you briefly through key biological concepts in human development, these will later be explored in more detail through the BGD course. I will be using simplified terms in the lecture slides (with developmental term in. This Lecture is under revision for 2012. brackets).
Fetal Development 4 Weeks A home pregnancy test should display a positive result. The ball of cells formed during fertilization have developed into an embryo in the uterus. 28 Weeks Breathing movements and body temperature are now controlled by the central its body. Lanugo helps the nervous system. 14 Weeks The fetus develops lanugo,
A developing human is referred to as an embryo during weeks 3–8, and a fetus from the ninth week of gestation until birth. In this section, we’ll cover the pre-embryonic and embryonic stages of development, which are characterized by cell division, migration, and differentiation.
gestation. About 10-20 ml of fluid is removed, the fetal cells are separated and grown in culture and genetic results available in about 2 weeks. An !-fetoprotein test can be performed on the maternal blood. This protein is made by the fetus and is in higher concentrations in fetuses with neural tube defects. 13-week human fetus ~ 10cm in length.
View a customizable human prenatal development timeline ranging from fertilization to birth. Also includes quizzes, images, and movies.
Fetal Neural. Timeline of events in Human Neural Development. Brain Growth. 19 weeks (GA 21 weeks) neuronal migration ends and the radial glial cells that aided the migration now become transformed into astrocytes and astrocytic precursors.[1]
