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A&P CH20 word parts

A&P CH20 Pregnancy, Growth, and Development

allant- (sausage-shaped) allantois: tubelike structure extending from the yolk sac into the connecting stalk of the embryo
chorio- (skin) chorion: outermost membrane surrounding the fetus and other fetal membranes
cleav- (to divide) cleavage: period of development characterized by division of the zygote into smaller and smaller cells
lacun- (pool) lacuna: space between the chorionic villi that fills with maternal blood
morul- (mulberry) morula: embryonic structure consisting of a solid ball of about sixteen cells that resembles a mulberry
nat- (to be born) prenatal: period of development before birth
troph- (nurture) trophoblast: cellular layer that surrounds the inner cell mass and helps nourish it
umbil- (naval) umbilical cord: structure attached to the fetal naval (umbilicus) that connects the fetus to the placenta