Physostome

Physostomes are fishes that have a pneumatic duct connecting the gas bladder to the alimentary canal. This allows the gas bladder to be filled or emptied via the mouth. This not only allows the fish to fill their bladder by gulping air, but also to rapidly ascend in the water without the bladder expanding to bursting point. In contrast, fish without any connection to their gas bladder are called physoclisti.

单词	physostome
释义	physostome 英汉-汉英词典 n. 管鳔鱼词组 \| 习惯用语您要查找的是不是： physicist n. 物理学家 hysterectomy n. 子宫切除(术) photometry n. 光度测定；测光法；光度学网络短语: physostome 管鳔类英语百科 Physostome Physostomes are fishes that have a pneumatic duct connecting the gas bladder to the alimentary canal. This allows the gas bladder to be filled or emptied via the mouth. This not only allows the fish to fill their bladder by gulping air, but also to rapidly ascend in the water without the bladder expanding to bursting point. In contrast, fish without any connection to their gas bladder are called physoclisti.
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physostome

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网络短语:

Physostome