nephron, umbilical vein, epididymis, metaplasia, adventitia, purkinje cell, vasa, parenchyma, efferent, reticular, calculi, fibril, acinar, hepatic vein, motoneurons, spermatic cord, lymphatics, pyrimidine, endonuclease, glomerulus, proteolysis, lymphoid tissue, micronuclei, rostral, adrenal cortex, proteoglycan, mesenteric, secretase, palmitate, neuromuscular junction, jejunum, epithelia, ileal, trabeculae, proteinaceous, reticulum, ectoderm, mononuclear, erythrocytes, mesenchyme, choroid plexus, somites, transmembrane, leucocytes, plasminogen, pineal, dpp, conceptus, leydig cell, mesoderm, sphingomyelin, striated muscle, midgut, morphogen, punctate, osteoblast, epithelial cell, synovial, ciliary body, lateral ventricle, plexiform, epiphysis, lymphocytic, anterior pituitary, intima, subarachnoid space, spectrin, pannus, basilar artery, papule, osteoclast, uracil, tetramer, corpus luteum, sinoatrial node, supernatant, myometrium, vacuoles, secretory, histidine, prokaryote, osteochondroma, melanocyte, guanosine, leiomyoma, globin, chylomicron, reductase, exocrine, ciliary, hydrolase, thyrotropin, diffusivity, flavin, polymorphonuclear, thymic, motile, sulci, spermine, eccrine, hexose, peroxisome, tubules, nephrons, intestine, mesentery, tubular, dendrite, filament, oviduct, capillary, flagellum, arteriole, canaliculi, cell, cilium, duct, fascicles, lamina, spindle, vesicle, luminal, sac, seminiferous, vacuolar, glomerular, dendritic, endothelial, golgi, sarcolemmal, sarcoplasmic, thecal, allantoic, coelomic, ductal, endoplasmic, extraembryonic, lumenal, membrane

microtubule, seminiferous tubule, trachea, uriniferous tubule

epididymis, microtubule

tube, tube-shaped structure