Pessulus
ペスラスは、鳥の鳴管の最初の一対の気管支軟骨の背側と腹側の端をつなぐ繊細な軟骨の棒です。 Anas platyrhynchosなどの一部の鳥では、マガモが骨化することがあります。 ウィキペディア（英語)
関連する質問
Where is the pessulus located in the bird?
What is the syrinx of a bird?
The meaning of PESSULUS is a bony or cartilaginous bar crossing the lower end of the windpipe of a bird dorsoventrally at its division into bronchi.
(anatomy) A delicate bar of cartilage connecting the dorsal and ventral extremities of the first pair of bronchial cartilages in the syrinx of birds.
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The pessulus is bony in passerines and provides attachment to membranes, anteriorly to the semilunar membranes. The membrane that forms part of the first three ...
(anatomy) A delicate bar of cartilage connecting the dorsal and ventral extremities of the first pair of bronchial cartilages in the syrinx of birds.
noun (Anat.) A delicate bar of cartilage connecting the dorsal and ventral extremities of the first pair of bronchial cartilages in the syrinx of birds.
pessulus, i, m. (neutr. collat. form in plur. pessula, Paul. Nol. Carm. 18, 412) [πάσσαλος], a bolt (ante- and post-class.): occlude sis fores ambobus ...
n. 1. (Anat.) A delicate bar of cartilage connecting the dorsal and ventral extremities of the first pair of bronchial cartilages in the syrinx of birds.
A delicate bar of cartilage connecting the dorsal and ventral extremities of the first pair of bronchial cartilages in the syrinx of birds. [1913 Webster].