Comparative Ontogeny and Cranio-facial Growth

摘要: Publisher Summary This chapter discusses the comparative ontogeny and cranio-facial growth. According to formal anatomical conception, first indication of development a head is rostral thickening growth neural tube followed by ventral bending. The curved in two places — at future mesencephalon (cephalic flexure), site where it change into spinal cord (cervical flexure). A dorsal curvature develops much later between myelencephalon metencephalon. Shortly after this thickening, differentiates five well-known cerebral parts. provides an overview elements region. Entire measured as increase length from snout tip any arbitrary spot occipital brain or parts dry wet weight, length, width, volume. eye starts early increases gradually all directions almost until adult stage. For other sense organs, assumed that similar patterns occur.