tubules
Microscopic hollow channels
Tubules are tiny tubes, especially the microscopic ones found throughout biological systems.
The kidneys contain tubules that filter waste from blood; plant roots absorb water through tubules; and countless other structures in living organisms depend on these minuscule channels.
The word is essentially a diminutive of tube, used when the structures are too small to see with the naked eye.
The renal tubules were damaged by the infection.
Kidney's filtering units
- kidneysBlood-filtering organ pair
- glomerulusCapillary knot filtering blood
- renalOf the kidneys
- cortexOrgan's external tissue
medulla · pelvis · calyces · ureters · reabsorption · excretion · urea · creatinine
Enclosed passage tubes
- channelsPaths for transmission
- conduitsChannels for conveying substances
- passagewaysEnclosed routes between spaces
- vesselsCarriers or containers
hollow · cylindrical · coiled · convoluted · branching · network · lumen · walls
Moving things between places
- secretionSubstance released by glands
- absorptionProcess of taking in
- filtrationSeparating solids from liquids
- exchangeMutual giving and receiving
permeability · diffusion · flow · drainage · conveyance · selectivity · regulation
Hollow cellular protein structures
- endoplasmic reticulumCytoplasmic membrane network for synthesis
- transverseExtending sideways across
- organellesSpecialized cell subunits
- cytoplasmGel surrounding the nucleus
membranes · cilia · flagella · secretory · lumen · epithelium · basement membrane
nephrons
Kidney's filtering units
- kidneysBlood-filtering organ pair
- glomerulusCapillary knot filtering blood
- renalOf the kidneys
cortex · medulla · pelvis · calyces · ureters · reabsorption · excretion · urea · creatinine · filtration
ducts
Enclosed passage tubes
- channelsPaths for transmission
- conduitsChannels for conveying substances
- passagewaysEnclosed routes between spaces
vessels · hollow · cylindrical · coiled · convoluted · branching · network · lumen · walls · diameter
transport
Moving things between places
- secretionSubstance released by glands
- absorptionProcess of taking in
- filtrationSeparating solids from liquids
exchange · permeability · diffusion · flow · drainage · conveyance · selectivity · regulation
microtubules
Hollow cellular protein structures
- endoplasmic reticulumCytoplasmic membrane network for synthesis
- transverseExtending sideways across
- organellesSpecialized cell subunits
cytoplasm · membranes · cilia · flagella · secretory · lumen · epithelium · basement membrane
- kidneyskidney, nephron, nephrons, glomerulus, glomeruli
- ER biologysheets, protein folding, signal peptide, N-glycan, HMG-CoA reductase
- Borgcollective, cube, hive mind, nanoprobes, resistance is futile
- tissuesadipose, neural tissue, cardiac tissue, fibrous tissue, bone
tubulesvessels
Carriers or containers
arteries · veins · capillaries · arterioles · venules
- tubular bellsStruck metal tube instrument
- tubular steelHollow cylindrical metal sections
- tubular reabsorptionNephron recovery of filtered substances