The papillary layer is the more superficial layer of the lamina propria.
2.
The deep network lies between the dermis and the subcutaneous tissue, while the shallow network lies within the papillary layer of the dermis.
3.
Between the papillary layer and the deeper layers of the lamina propria is a capillary plexus, which provides nutrition for the all layers of the mucosa and sends capillaries into the connective tissue papillae.
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