nephridia
Hemolymph
the type of respiratory organ mollusks have is GILLS.
nephridia c for plato uses. -RayRay
The scratchy tongue-like organ of many mollusks is the RADULA.
Arthropods and mollusks have an open circulatory system, where blood (hemolymph) is not confined exclusively to vessels but bathes the organs directly in a hemocoel. In arthropods, such as insects and crustaceans, a dorsal heart pumps hemolymph through vessels into the body cavity, while in mollusks, the heart pumps hemolymph through a series of sinuses. This system allows for efficient nutrient and gas exchange despite the lack of a closed network. However, some cephalopod mollusks, like octopuses, possess a closed circulatory system for more efficient oxygen transport.
The Kidneys.
Kidney.
Hemolymph is a fluid found in the circulatory systems of invertebrates, particularly those in the phylum Arthropoda, such as insects, arachnids, and crustaceans. It serves a similar function to blood in vertebrates, transporting nutrients, hormones, and waste products. Hemolymph also plays a crucial role in immune responses and maintaining hydrostatic pressure in these organisms. Other invertebrates, like mollusks, also have hemolymph as part of their open circulatory systems.
sphinkter
muscular feet is the locomotory organ in mollusks
* Oxygenated hemolymph (blood), coming from ctenidia, flows into heart's atria, * then it flows into heart's ventricle, which pumps the hemolymph into arteries, * from arteries, hemolymph flows into the hemocoel; * then it's caught again inside veins and brought directly into afferent ctenidial vessels or into accessory branchial hearts, which pump it inside ctenidia again, for oxygenation. Hemolymph flows also into the pericardium, the celomatic membrane wich contains the systemic heart, and, from it, hemolymph reaches and flows into the excretory ducts.
Siphon .