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Detailed description of conch parts
As shown in the figure below:

Conch shell is slightly square in outline, large and thick, with a shell as high as 10 cm and six spiral layers. Rich in protein, vitamins, essential amino acids and trace elements, it is a typical natural animal food with high protein, low fat and high calcium.

Extended data

Living habits

Conch moves slowly and often feeds on algae and microorganisms. They generally inhabit shallow seas and are echinoderms. The outer lip of the shell is extremely abduction, and the female snail is obviously larger than the male snail.

The meat is edible, and the shell is for viewing and can be used for carving. Night activities. Feet are located on the ventral surface of the body, thick and muscular, suitable for crawling. Carnivorous. They mainly feed on echinoderms.

These mollusks usually live in shallow water or flat mud and can be found in deep water as deep as 600 feet (200 meters). Most conchs are caught by traps or trawls, and they may also be by-products of other products.

shellfish

The nervous system of shellfish consists of four pairs of ganglia: brain, foot, lateral and internal organs, and the nerves connected with them. The cranial nerve ganglion is located on the dorsal side of esophagus and sends nerves to the head and front of the body. The foot ganglion is located in the front of the foot and sends nerves to the foot; Pleural ganglion is located in the front of the body and sends nerves to the coat and gills; Visceral ganglion is located at the back of the body, sending nerves to internal organs.

The primitive species of shellfish have a simple nervous system and no obvious ganglia. Compared with evolved species, they form ganglia, while more evolved species form a "brain", and each ganglion is concentrated in the head. Sensory organs mainly include antennae, eyes, balance sac and osphradium.