Книга: Child Charles Manning «The Origin and Development of the Nervous System»

The Origin and Development of the Nervous System

Серия: "-"

Книга представляет собой репринтное издание. Несмотря на то, что была проведена серьезная работа по восстановлению первоначального качества издания, на некоторых страницах могут обнаружиться небольшие "огрехи" :помарки, кляксы и т. п.

Издательство: "Книга по Требованию" (2011)

Купить за 1314 руб в My-shop

Другие книги автора:

КнигаОписаниеГодЦенаТип книги
Senescence and RejuvenescenceКнига представляет собой репринтное издание. Несмотря на то, что была проведена серьезная работа по… — Книга по Требованию, - Подробнее...20111321бумажная книга

Child, Charles Manning

▪ American zoologist
born Feb. 2, 1869, Ypsilanti, Mich., U.S.
died Dec. 19, 1954, Palo Alto, Calif.

      American zoologist who developed the axial gradient theory of regeneration and development, a physiological explanation of the ordered re-creation of animal parts following an injury.

      While at the University of Chicago, where he spent his academic life (1895–1934), Child experimented extensively with invertebrates such as planarian flatworms and freshwater hydras, which show a remarkable ability to regenerate themselves from small fragments. He observed that characteristic parts, such as a head or a tail, usually grew from that portion of the fragment where the same part had previously been joined, a phenomenon known as polarity. On the basis of his experiments, Child advanced a theory of antero-posterior dominance, stating that physiological activity in a multicellular organism increases along its axis from bottom to top (or tail to head), and that this gradient of activity in a tissue fragment determines the position of structures growing from it. He felt that the gradient was caused by the action of a chemical factor on cell functions. Although Child was not able to demonstrate how gradients were formed in the first place, his theory directed many investigators to seek to understand developmental processes in physico-chemical terms. Child was particularly influential in combining physiological and developmental theories of cell recognition and pattern formation.

      Among his publications are Individuality in Organisms (1915) and Patterns and Problems of Development (1941).

* * *

Источник: Child, Charles Manning

См. также в других словарях:

  • nervous system, human — ▪ anatomy Introduction       system that conducts stimuli from sensory receptors to the brain and spinal cord and that conducts impulses back to other parts of the body. As with other higher vertebrates, the human nervous system has two main… …   Universalium

  • nervous system disease — Introduction       any of the diseases or disorders that affect the functioning of the human nervous system (nervous system, human). Everything that humans sense, consider, and effect and all the unlearned reflexes of the body depend on the… …   Universalium

  • Nervous system — Nerve redirects here. For other uses, see Nerve (disambiguation). This article is about the nervous system. For parts of the nervous system commonly called nerves, see Peripheral nerve. Nervous system The Human N …   Wikipedia

  • nervous system — Anat., Zool. 1. the system of nerves and nerve centers in an animal or human, including the brain, spinal cord, nerves, and ganglia. 2. a particular part of this system. Cf. autonomic nervous system, central nervous system, peripheral nervous… …   Universalium

  • Parasympathetic nervous system — The parasympathetic nervous system (PSNS) is a division of the autonomic nervous system (ANS), along with the sympathetic nervous system (SNS) and enteric nervous system (ENS or bowels NS ). The ANS is a subdivision of the peripheral nervous… …   Wikipedia

  • The Institutes for the Achievement of Human Potential — is a non profit organization providing teaching programs and literature which it promotes as improving the health and neurological development of normal children and of children who have sustained a brain injury. Although the institute s programs …   Wikipedia

Поделиться ссылкой на выделенное

Прямая ссылка:
… Нажмите правой клавишей мыши и выберите «Копировать ссылку»