Theory of phyloembroyogenesis – deviation. Phylogenesis of the chord avian nervous system. Developmental disorders of

TOPIC:
THEORY OF PHYLOEMBROYOGENESIS – DEVIATION.PHYLOGENESIS OF THE CHORD AVIAN NERVOUS SYSTEM.DEVELOPMENTAL DISORDERS OF NERVOUS SYSTEM IN HUMANS

PHYLOGENESIS
INVESTIGATIONS OF RUSSIAN SCIENTIST A.N. SEVERTSOV WAS OPENED CONNECTION BETWEEN ONTOGENESIS AND PHYLOGENESIS . ACCORDING TO HIS THEORY THE SOURCE OF PHYLOGENETIC TRANSFORMATIONS IN CHANGES ARISING ON EARLY STAGES OF ONTOGENESIS ,NOT IN ADULT FORMS .EMBROYONIC CHANGES REFLECTED ON THE STRUCTURE OF ADULT FORMS AND HAVING EVOLUTIONAL IMPORTANCE ARE CALLED AS PHYLOEMBROYOGENESIS.

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