Ultrastructural evidence for the innervation of human pulmonary alveoli.
Electron Microscopic observations of the biopsied human pulmonary alveoli showed the occurrence of unmyelinated axons in the interstitium near the type I pneumocytes. These axons very likely have sensory functions.
D001369:Axons / Q000502:physiology / Q000648:ultrastructure*; D006801:Humans; D008854:Microscopy, Electron; D011650:Pulmonary Alveoli / Q000294:innervation* / Q000648:ultrastructure