saliva accosiated organs salivary valve It is situated at the base of the hypopharynx. It has a thick cup-shaped lower wall and a thin elastic upper wall which is usually collapsed into the cavity of the valve. The common salivary duct opens into the valve through the upper wall. TGMA:0001817 TGMA:0001817 adult alimentary canal in ISBN:0-937548-00-6. default_namespace