[On the presence in certain lymphatic ganglia of canals in which blood vessels and nerves are located].
D001808:Blood Vessels / Q000033:anatomy & histology*; D005724:Ganglia / Q000033:anatomy & histology*; D006801:Humans; D042601:Lymphatic Vessels; D016740:Meridians; D009420:Nervous System / Q000033:anatomy & histology*
BLOOD VESSELS/anatomy and histology; GANGLIA/anatomy and histology; NERVOUS SYSTEM/anatomy and histology