Final answer:
The main component of the reticular lamina is reticular fibers, which are fibrous proteins made up of collagen subunits. They form supportive networks in connective tissues and are abundant in soft organs.
Step-by-step explanation:
The main component of the reticular lamina is reticular fibers. Reticular fibers are fibrous proteins made up of collagen subunits that form supportive networks within connective tissues. They are most abundant in the reticular tissue of soft organs like the liver and spleen, where they provide structural support.