in urethan-anesthetized thoracotomized rats the density of myocardial capillaries that had been stained during timed infusions of a plasma label was determined . gamma-globulin-coupled fluorochromes [ lissamine-rhodamine b 200 ( rb 200 ) and fluoresceinisothiocyanate ( fitc ) ] were applied to the vascular system for different intervals of time .
C0006901
capillaries
C0489903
vascular system