The lamina propria of the turbinates contains prominent venous plexuses (two veins are indicated by arrows, HA2). Blood flow into this plexus helps to warm the inspired air. We have smaller venous plexuses in our nasal cavities that serve the same function. Adjacent to the venous plexus are large serous/mucous glands (HA2). The mucous glands and the goblet cells in the pseudostratified columnar epithelium are responsible for mucus production in the nasal cavity. Mucus traps inhaled particulates.