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单词 Buccal mass
释义

Buccal mass

英语百科

Digestive system of gastropods

Drawing of the digestive tract of Anostoma depressum viewed as if through the apex of the shell
3D reconstruction of the digestive system of Pseudunela cornuta:
mo - mouth
r - radula
ph - pahrynx
sgl and sgr - salivary glands
oe - oesophagus
i - intestine
a - anus
dg - digestive gland.
Drawing of the digestive system of carnivorous Schizoglossa novoseelandica, showing the large pharynx.
1-2 - buccal mass,
1 - mouth,
2 - pharynx,
3 - retractor muscles of the pharynx,
4 - salivary glands,
5 - salivary ducts,
6 - oesophagus and stomach,
7 - intestine,
8 - hepatic ducts.
The feeding track of Triboniophorus graeffei made by grazing with the radula.

The digestive system of gastropods (slugs and snails of every kind) has evolved to suit almost every kind of diet and feeding behavior. Gastropods as the largest taxonomic class of the mollusca are very diverse indeed: the group includes carnivores, herbivores, scavengers, filter feeders, and even parasites.

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更新时间:2025/6/18 10:27:18