[Morphofunctional characteristics of the neural structures of the heart during adaptation to physical exertion under experimental conditions].
The elements of the intramural apparatus in the heart, aorta and pulmonary trunk in 1- and 3-month-old puppies are structurally formed, however, the simplest forms of their organization predominate, especially in the terminal apparatus. A low, mediatory activity of all components in the intramural neural apparatus in the heart, aorta, pulmonary trunk demonstrates their functional immaturity. Under conditions of doses physical loadings, the intracardial neural apparatus reaches its structural and functional maturation more quickly. At training, some components of the cardiac intramural neural apparatus form certain structures peculiar for the state of stimulation. Most often these changes are localized in the preterminals and they should be considered as structural demonstration of the compensatory-adaptive reactions occurring in the organ.
D000222:Adaptation, Physiological; D000818:Animals; D001011:Aorta / Q000294:innervation; D004285:Dogs; D006321:Heart / Q000294:innervation*; D006329:Heart Conduction System / Q000166:cytology*; D009474:Neurons / Q000502:physiology*; D005082:Physical Exertion; D011651:Pulmonary Artery / Q000294:innervation
Morfofunktsional'nye osobennosti nervnykh struktur serdtsa v usloviiakh adaptatsii kfizicheskim nagruzkam v éksperimente.