Thin, rod-shaped, anteroventrally directed membrane bone that develops as a separate outgrowth from the cartilage parapophysis of the fourth vertebra; develops ventrally to curve around the anterior head of the swim bladder. It articulates with the tripus at the tripus-swim bladder connection. Often termed a fifth Weberian ossicle. [ http://zfin.org/ZDB-PUB-031103-13 ]
Term information
- TAO:0001171
The os suspensorium is similar in shape to a rib, but the other ribs in Danio develop as separate ossifications that grow toward and articulate with the parapophyses.
Term relations
- trunk bone
- endochondral bone
- Weberian ossicle
- os suspensorium
- membrane bone
- part of some Weberian ossicle
- part of some vertebra 4