Simple co| umar epI(单层柱状上皮) 8 one layer, columnar, basally located ovoid nucleus 令 Goblet cel(杯状细胞): scattered, secreting granules mucinogen granules-mucus Distribution: gastrointestinal tract gall bladder uterus Function: secretion and absorption 8 88 ❖ one layer, columnar, basally located ovoid nucleus ❖ Goblet cell（杯状细胞）: scattered, secreting granules￾mucinogen granules-mucus Distribution: gastrointestinal tract gall bladder uterus Function: secretion and absorption Simple columnar epi.( 单层柱状上皮）