Whole-mount of a single salivary gland dissected from a female Aedes aegypti mosquito. The salivary gland is comprised of two lateral lobes and a single, centrally-located medial lobe, M . The lateral lobes, L are further defined into two regions: proximal-lateral, PL and distal-lateral, DL. Intermediate, or neck regions are indicated with arrowheads (top panel). The salivary duct (sd) that connects all ducts of the salivary gland lobes is illustrated (bottom panel).