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13 Cards in this Set

  • Front
  • Back
Cephalocaudal law of development
the direction of development that occurs from the top down to the bottom of the body
Proximodistal law of development
the pattern of development that occurs from the center of the body and extends to the body's extremities
Conception
the moment when the male and the female gametes (sperm and ovum) meet and combine genetic information
DNA
a complex acid that contains all of the genetic instructions for the development of the individual, organised into chromosomes within cells
Germinal stage
the first stage of prenatal development measured from implantation (about two weeks post-conception)
Embryonic stage
the second stage of prenatal development measured from implantation until the eight week after conception
Foetal stage
the third stage of prenatal development measured from the end of week eight until birth
Zygote
the name given to the new cell following fertiliastion
Morula
the name given to the group of 16-20 cells about 4 days after conception
Differentiation
during the germinal stage, the process in which cells take on individual functions
Blastocyst
the name given to the group of human cells following differentiation approximately six days after conception
Placenta
a vital organ that supplies oxygen and nutrients to the developing embryo and removes waste products; it is formed from a layer of the developing embryo and links it to the circulatory system of the mother until birth
Socialisation
the process of acquiring values, attitudes and behaviours through interacting with others