FIGURE 1.207. FOETAL MEMBRANES AND CIRCULATION.
FIGURE 1.208. FEMALE GORILLA.
FIGURE 1.209. MALE GIANT-GORILLA.
GLOSSARY.
ACRANIA: animals without skull (cranium).
ANTHROPOGENY: the evolution (genesis) of man (anthropos).
ANTHROPOLOGY: the science of man.
ARCHI-: (in compounds) the first or typical—as, archi-cytula, archi-gastrula, etc.
BIOGENY: the science of the genesis of life (bios).
BLAST-: (in compounds) pertaining to the early embryo (blastos = a
bud); hence:—
Blastoderm: skin (derma) or enclosing layer of the embryo.
Blastosphere: the embryo in the hollow sphere stage.
Blastula: same as preceding.
Epiblast: the outer layer of the embryo (ectoderm).
Hypoblast: the inner layer of the embryo (endoderm).