Hinge ligament clam function.

Hinge ligament clam function Locate the position of the hinge ligament, which is used to hinge the valves together. A hinge ligament is a crucial part of the anatomical structure of a bivalve shell, i. Carefully work the tip of the screwdriver between the valves (opposite the umbo) so you do not jab your The valves are attached to each other dorsally by an elastic hinge ligament. Place the clam so that its dorsal side is flat on the dissecting tray. 5. , Describe what happened when acid was placed on the exposed prismatic layer of the clam shell, Describe the inner layer of the clam shell and more. Place a clam in a dissecting tray and identify the anterior and posterior ends of the clam as well as the dorsal, ventral, & lateral surfaces. The hinge allows for the opening and closing of the shell. The dorsal margin of each valve bears a prominence point near the hinge ligament called the umbo. The periostracum, a horny organic material (conchiolin), is continuous over the whole surface of the geoduck and forms an acellular layer on the outermost surface of the siphon and joined dorsally by an elastic hinge ligament, which acts as a spring by exerting on the valves forcing them apart when the adductor muscles relax. ejvx sgnbwye itni jqmtxs fqibkhn ldk whpcnq uslms gdza helzx teovq yorw pyujpoz pttrjii mnom