| 词汇 | purkinje-fibre |
| 语种 | 英语、汉语、英汉翻译、汉英翻译 |
| 释义 | Purkinje fibre noun[ C ] anatomy UKspecialized(USPurkinje fiber)uk /pɜːˈkɪn.dʒi ˌfaɪ.bər/ us /pɚˈkɪn.dʒi ˌfaɪ.bɚ/ any of the specialized muscle fibres(= threads) in the heart that carry electrical signals that help control the way the heart contracts(= pushes inwards as it beats): Contraction of the heart muscle is triggered by an electrical signal that is spread through the heart by special cells, including those that make up Purkinje fibres. Purkinje fibres are the terminal portions of the conduction system of the heart. The electrical wave travels down specialized conducting fibres to a network of Purkinje fibres, which spread out through the inner region of the ventricular walls. The Purkinje fibres ensure the rapid propagation of electric pulses that permit the efficient pumping of blood from the ventricles. In cardiac muscle, desmin is the major component of Purkinje fibres. The circulatory system & blood ABO accessory pathway adventitia adventitial ANA auricle bicuspid valve femoral artery gamma globulin glomus granulocyte haematogenous haemic phagocyte portal system precava pulmonary artery pulmonary vein pulmonic tricuspid valve You can also find related words, phrases, and synonyms in the topics: Substances & structures in the body |
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