Flashcards in History of Gross Anatomy Deck (13)
founded, i.e. , “sperm or ovum contain a germ that is completely formed but minute and invisible and expands to visible size and form during development”
homonculus pertained to what theory?
egg lacks internal organization, some outside force causes development through use of cells. theory holding that development is a gradual process of increasing complexity
the father of modern embryology
who formulated cell theory?
Schleiden and Schwann
claims that each embryo in its development passes through abbreviated stages that resemble developmental stages of its evolutionary ancestors
complete developmental history of an individual
complete developmental history of a species
walter flemming described
chromosome behavior during animal cell division and suggested role in fertilization
Felix von Winiwarter
first observation of human chromosomes
Joe Tjio and Albert Levan
report 46 chrom. in humans
Lejeune et. al.
first describe congenital abnormalities from abnormal chrom. #