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Airway epithelial cells （人小氣道上皮細胞）forming a continuous lining to the airways play a unique role as a protective physical and functional barrier to external deleterious agents.

Thyroid fibroblasts （人甲狀腺成纖維細胞）are found in the capsule of the thyroid gland, an endocrine organ responsible for hormone homeostasis and iodine concentration.

Human Trabecular Meshwork Cells (TMC) play an active role in the aqueous outflow mechanism.

Human Umbilical Vein Endothelial Cells (HUVECs,人臍靜脈內皮細胞) are cells from the vein of umbilical cord.

With the typical star-like morphology, human astrocytes（人類(lèi)星形膠質(zhì)細胞） generally have sparse organelles and several processes radiating from the central cell body.