Does a snail have a visceral mass?

The visceral hump, or visceral mass, of gastropods is always contained within the shell; it generally holds the bulk of the digestive, reproductive, excretory, and respiratory systems.

1. What animals have visceral mass?
2. What phylum has a visceral mass?
3. What do you mean by visceral mass?
4. In which animals visceral mass is covered with mantle?
5. Do all molluscs have eyes?
6. What is a squid visceral mass?
7. Where is the visceral mass of a clam?
8. Which class includes snails and slugs?
9. What protects the visceral mass?
10. Does a Mollusca have a shell?
11. Which animal has muscular foot?
12. Which animal has muscular foot as the Locomotory organ?
13. What is a snail mantle?
14. Does a snail have a foot?
15. What animals have a mantle?

What animals have visceral mass?

All mollusks have a visceral mass, a mantle, and a foot. The visceral mass contains the digestive, excretory, and reproductive organs.

What phylum has a visceral mass?

Mollusks have a soft body and share several characteristics, including a muscular foot, a visceral mass of internal organs, and a mantle.

What do you mean by visceral mass?

(noun) the soft, non-muscular metabolic region of the mollusc that contains the body organs.

In which animals visceral mass is covered with mantle?

The mantle (also known by the Latin word pallium meaning mantle, robe or cloak, adjective pallial) is a significant part of the anatomy of molluscs: it is the dorsal body wall which covers the visceral mass and usually protrudes in the form of flaps well beyond the visceral mass itself.

Do all molluscs have eyes?

Diversity. There are between seven and eleven distinct eye types in molluscs. Molluscs have eyes of all levels of complexity, from the pit eyes of many gastropods, to the pinhole eyes of the Nautilus, to the lensed eyes of the other cephalopods.

What is a squid visceral mass?

Squids possess a vestigial skeleton under the mantle, called the pen, which surrounds the visceral mass. A squid has three hearts, one pumps blood to internal organs; two pump blood to the gills in the mantle cavity. Gonads make up a large portion of the visceral mass.

Where is the visceral mass of a clam?

Like all mollusks, a clam has a mantle which surrounds its soft body. It also has a muscular foot which enables the clam to burrow itself in mud or sand. The soft tissue above the foot is called the visceral mass and contains the clam's body organs.

Which class includes snails and slugs?

The Class Gastropoda (in Phylum Mollusca) includes the groups pertaining to snails and slugs. The majority of gastropods have a single, usually spirally, coiled shell into which the body can be withdrawn.

What protects the visceral mass?

The mantle covers the visceral mass and is itself covered by the shell. The mantle cavity is usually found in the posterior end of the animal and is formed between the mantle and the visceral mass.

Does a Mollusca have a shell?

mollusk, also spelled mollusc, any soft-bodied invertebrate of the phylum Mollusca, usually wholly or partly enclosed in a calcium carbonate shell secreted by a soft mantle covering the body.

Which animal has muscular foot?

Mollusks have a muscular foot, which is used for locomotion and anchorage, and varies in shape and function, depending on the type of mollusk under study. In shelled mollusks, this foot is usually the same size as the opening of the shell. The foot is a retractable as well as an extendable organ.

Which animal has muscular foot as the Locomotory organ?

Therefore, it can be said that the locomotory organ of the snail is a muscular foot. Muscular rings are generally present in earthworms. The body of an earthworm is divided into many segments.

What is a snail mantle?

The mantle is an important part of the body of a mollusk. It forms the outer wall of the mollusk's body. ... In mollusks that have shells, such as clams, mussels, and snails, the mantle is what secretes calcium carbonate and a matrix to form the mollusk's shell.

Does a snail have a foot?

A snail uses its single long, muscular foot to crawl on a layer of mucus-like slime that it secretes. ... These waves of muscle contraction and relaxation travel along the central portion of the foot from tail to head. The waves move much faster than the snail itself, and generate enough force to push the snail forward.

What animals have a mantle?

mantle, also called pallium, plural pallia, or palliums, in biology, soft covering, formed from the body wall, of brachiopods and mollusks; also, the fleshy outer covering, sometimes strengthened by calcified plates, of barnacles. The mantle of mollusks and brachiopods secretes the shell in species that possess shells.