Morphological classifications of vertebrate blood capillaries.
D000818:Animals; D002196:Capillaries / Q000033:anatomy & histology*; D002319:Cardiovascular System; D004583:Electrons; D006652:Histological Techniques; D008853:Microscopy; D008854:Microscopy, Electron; D014714:Vertebrates
CAPILLARIES/anatomy and histology; MICROSCOPY, ELECTRON