The visceral mass is what I like to call the pouch – it’s the big marble sized ball we mentioned earlier. It contains the body organs. completes chemical digestion, absorbs nutrients into visceral mass, and sends waste into rectum (clam) Mantle (clam) also known as the Palium, is a specialized epidermis that encloses all visceral organs and secretes organisms shell (clam) It also has a muscular foot which enables the clam to burrow itself in mud or sand. Like all mollusks, a clam has a mantle which surrounds its soft body. This mass has things like the gonad (sexual reproduction), intestines, stomach, and digestive glands. The radula is … Clams are marine mollusks with two valves or shells. The soft tissue above the foot is called the visceral mass and contains the clam… It also has a muscular foot which enables the clam to burrow itself in mud or sand. Like all mollusks, a clam has a mantle which surrounds its soft body. Mantle and mantle cavity. It is lined with epidermis, and is exposed, according to habitat, to sea, fresh water or air. Note the hatchet shape of the foot used to burrow into mud or sand. Locate the palps, (mouth flaps) structures that surround & guide food into the clam's mouth.Beneath the palps, These are the right and left mantle skirts and together they enclose a large water space, the mantle cavity, ventral and anterior to the visceral mass. 13. adductor muscle • Hold valves shut 4. Like all mollusks, a clam has a mantle which surrounds its soft body. The mantle covers the foot and visceral mass and is connected to the shell by pallial muscles close to the edge of the shell. The body of the clam is com-pletely enclosed in a mantle, which is subdivided into lateral lobes that secrete a calcium car-bonate shell. It also has a muscular foot which enables the clam to burrow itself in mud or sand. The foot is a muscular structure that has many functions in different mollusks including movement, attachment, and predation. Post adductor musclePost. adductor muscle 3. As in the clam there is an epidermis and mixed muscle and connective tissue. visceral mass – area containing the internal body parts crystalline style – rod that spins in the stomach to sort food and aid digestion gills – used for obtaining oxygen shell – hard outer protection layer mantle – a thin membrane surrounding the body of the clam that secretes the shell siphon flap Clams are marine mollusks with two valves or shells. The mantle partially covers the visceral mass and may secrete a shell in some mollusks. • Covers visceral or body mass • Holds in fluid • Secrets new shell 2. Food & Digestion.-- Snails are active feeders in contrast to the passiveness of clams. A buccal mass is housed inside the proboscis, which can be protruded through the mouth. Taxonomy Kingdom-Animalia Phylum - Mollusca The Mollusk visceral mass includes body organs – the digestive tract, renal and reproductive organs. The mantle cavity, a fold in the mantle, encloses a significant amount of space. The soft tissue above the foot is called the visceral mass and contains the clam's body organs. 12. A large, thin fold of the dorsal body wall extends laterally from each side of the visceral mass. Observe the muscular foot of the clam ventral to the gills. It is attached to the soft visceral mass, which contains the other organs. The visceral mass fills most of the space between the hinge and the adductor muscle (Fig 5). Ant. The visceral mass, or visceropallium, is the soft, nonmuscular metabolic region of the mollusc. The soft tissue above the foot is called the visceral mass and contains the clam's body organs. Internal Clam 1 Mantle Shell Anatomy. To burrow itself in mud or sand I like to call the pouch – it ’ s big... 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