Crown-rump length — An ultrasound showing a fetus measured to have a crown rump length of 1.67 cm, and estimated to have a gestational age of 8 weeks and 1 day Crown rump length (CRL) is the measurement of the length of human embryos and fetuses from the top of the… … Wikipedia
crown-rump length — noun : sitting height … Useful english dictionary
length — Linear distance between two points. arch l. the amount of space required for the permanent teeth as measured from the mesial aspect of the first molar on one side to the mesial aspect of the first molar … Medical dictionary
greatest length — a dimension used to express the size of very young human embryos that have not yet developed the structures permitting measurement of crown rump length, as during the third week … Medical dictionary
CRL — Abbreviation for crown rump length. * * * cell repository line; central right lung; Certified Record Librarian; clinical reasoning learning; complement receptor location; complement receptor lymphocyte; crown rump length * * * crown rump length … Medical dictionary
Prenatal development — This article is about prenatal development of human embryos and fetuses. For other species, see prenatal development (non human). For maternal changes in the prenatal period, see Maternal physiological changes in pregnancy. Prenatal or antenatal… … Wikipedia
Obstetric ultrasonography — Intervention Obstetric sonogram of a fetus at 16 weeks. The bright white circle center right is the head, which faces to the left. Features include the forehead at 10 o clock, the left ear toward the center at 7 o clock and the right hand… … Wikipedia
Sexual differentiation — This article is about the development of sexual dimorphisms in humans. For sex differences for all animals, see Sexual dimorphism. Sexual differentiation is the process of development of the differences between males and females from an… … Wikipedia
Heart — This article is about the organ in various animals. For the human heart, see Human heart. For other uses, see Heart (disambiguation). Cardiac redirects here. For the cardboard computer, see CARDboard Illustrative Aid to Computation … Wikipedia
Umbilical cord — of a three minute old child. A medical clamp has been applied. Latin funiculus umbilicalis Code … Wikipedia