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1 : Domination of the head in animal life as expressed in the physical structure; localization of important organs or parts in or near the head, in animal development.

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1 : Cephalization

n.

Domination of the head in animal life as expressed in the physical structure; localization of important organs or parts in or near the head, in animal development.

This word cephalization uses (13) total characters with white space

This word cephalization uses (13) total characters with white out space

This word cephalization uses 11 unique characters: A C E H I L N O P T Z

Number of all permutations npr for cephalization word is (39916800)

Number of all combination ncr for cephalization word is (39916800)

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From Wikipedia

Cephalization is considered an evolutionary trend,[1] whereby nervous tissue, over many generations, becomes concentrated toward one end of an organism. This process eventually produces a head region with sensory organs.[2]


Cephalization is intrinsically connected with a change in symmetry. It accompanied the move to bilateral symmetry made in flatworms, with ocelli and pinnae placed in the head region. In addition to a concentration of sense organs, all animals from annelids on also place the mouth in the head region. This process is also tied to the development of an anterior brain in the chordates from the notochord. A notable exception to the trend of cephalization throughout evolutionary advancement is phylum Echinodermata, which, although having a bilateral ancestor, as evidenced by their embryology, develop into a pentaradial animal with no concentrated neural ganglia or sensory head region. However, some echinoderms have developed bilateral symmetry secondarily.

In neuroembryology, neural induction of the ectoderm forms a neural tube which undergoes cephalization to form initially three, then five vesicles as a developing embryo. It is the internalized ectoderm which goes on to become the central nervous system, peripheral nervous system and epidermis.

In respirology, cephalization refers to the distribution of pulmonary flow from the bases to the apices of the lung due to pulmonary edema.[3]

  1. ^ Biology/Encyclopædia Britannica 2010
  2. ^ Biology/Neil A. Campbell, Jane B. Reece.-7th Edition (AP Edition)
  3. ^ "Chest Radiology". virginia.edu. 

From Wiktionary

Contents

  • 1 English
    • 1.1 Etymology
    • 1.2 Noun
      • 1.2.1 Related terms

English[edit]

Wikipedia has an article on:
cephalization
Wikipedia

Etymology[edit]

From cephal- +‎ -ization.

Noun[edit]

cephalization (countable and uncountable, plural cephalizations)

  1. (biology) An evolutionary trend in which the neural and sense organs become centralized at one end (the head) of an animal

Related terms[edit]

  • telencephalization