[The vesicular system of the endothelium in the blood-carrying capillaries of the diaphragm with different functional states].
Micropinocytotic vesicles were counted in the endothelial cells of blood capillaries in the muscle of the diaphragm in its indirect rhythmic stimulation at a frequency of 50 imp/s after section of the phrenic nerve, and also in natural contraction and relaxation of the muscle during respiration. A change in the total count of the vesicles and even more pronounced changes in the ratio of the vesicles bound with plasmic membranes and freely located in the cytoplasm of the cells were revealed; this pointed to the change in the transendothelial transfer of substances. It appeared that the state of the process of vesicle formation could influence the method of fixation applied.
D000818:Animals; D002196:Capillaries / Q000648:ultrastructure*; D003964:Diaphragm; D004558:Electric Stimulation; D004727:Endothelium; D009121:Muscle Denervation; D009132:Muscles / Q000098:blood supply* / Q000502:physiology; D010873:Pinocytosis; D051381:Rats; D012119:Respiration
Issledovanie vezikuliarnoĭ sistemy éndoteliia v krovenosnykh kapilliarakh diafragmal'noĭ myshtsy pri razlichnykh funktsional'nykh sostoianiiakh