Gastralium

（重定向自Abdominal rib）

Crocodiles have the abdominal ribs modified into gastralia

Gastralia (singular gastralium) are dermal bones found in the ventral body wall of crocodilian and Sphenodon species. They are found between the sternum and pelvis, and do not articulate with the vertebrae. In modern animals, they provide support for the abdomen and attachment sites for abdominal muscles.

单词	Abdominal rib
释义	Abdominal rib 英语百科 Gastralium （重定向自Abdominal rib） Gastralia (singular gastralium) are dermal bones found in the ventral body wall of crocodilian and Sphenodon species. They are found between the sternum and pelvis, and do not articulate with the vertebrae. In modern animals, they provide support for the abdomen and attachment sites for abdominal muscles.
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