vesicle
Small fluid pouch
A vesicle is a small fluid-filled sac or cavity, especially within a cell or in body tissue.
In biology, vesicles are membrane-bound structures that transport materials within cells or between cells, playing crucial roles in processes like secretion and waste removal.
In medicine, a vesicle refers to a small blister on the skin containing clear fluid.
The term also applies in geology to small cavities in volcanic rock formed by trapped gas bubbles.
Bodily pouch structure
- bladderOrgan holding urine
- seminalFoundational and influential
- synovialOf joint membranes
- pulmonaryOf the lungs
alveolar · otic · cerebral · optic · umbilical · cyst · pouch · capsule
Subcellular functional unit
- membrane-boundEncased by lipid bilayer
- endosomeMembrane sac for internalized cargo
- lysosomeDigestive organelle in cells
- secretoryReleasing substances from cells
vacuole · cytoplasm · intracellular · trafficking · peroxisome · liposome · saccule · lumen
Cell engulfs external material
- exocytosisVesicular release from cells
- secretionSubstance released by glands
- synapticOf nerve connections
- neurotransmitterSynaptic chemical messenger
phagocytosis · receptor-mediated · translocation · docking · release · uptake · cargo · signaling
sac
Bodily pouch structure
pulmonary · alveolar · otic · cerebral · optic · umbilical · cyst · pouch · capsule · chamber
organelle
Subcellular functional unit
- membrane-boundEncased by lipid bilayer
- endosomeMembrane sac for internalized cargo
- lysosomeDigestive organelle in cells
secretory · vacuole · cytoplasm · intracellular · trafficking · peroxisome · liposome · saccule · lumen · budding
endocytosis
Cell engulfs external material
- exocytosisVesicular release from cells
- secretionSubstance released by glands
- synapticOf nerve connections
neurotransmitter · phagocytosis · receptor-mediated · translocation · docking · release · uptake · cargo · signaling · axonal
fluid-filled
Containing liquid matter
friction · burn · herpes · shingles · chickenpox · varicella · pustule · lesion · rash · sore
cavity
Empty space within
volcanic · pumice · scoria · igneous · magma · pore · rock · mineral · cooling · solidification
- Neurotransmissionsynapse, neurotransmitter, acetylcholine, dopamine, serotonin
- cell biologycell membrane, cell division, cytoplasm, ribosome, mitochondria
- Cell Componentsnucleus, cytoplasm, cell membrane, mitochondria, ribosome
- Cell Organellesmitochondria, mitochondrion, ribosome, ribosomes, lysosome
- cell partsnucleus, cytoplasm, mitochondria, ribosomes, cell membrane
- fruit anatomypericarp, endocarp, flesh, pulp, skin
vesicleparenchyma
Functional tissue of organs
fibrous tissue · stroma · nodule · granule · calcification