plastron(redirected from plastral)
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The sternum with costal cartilages attached.
[Fr. a breastplate]
plastron(plăs′trŏn) [Fr., breastplate]
The sternum and attached cartilages.
- the film of air covering parts of the body in aquatic insects such as water beetles, which enables them to stay under water. The film acts as a gill since gas exchange takes place between the water and the air bubble (plastron respiration).
- the horny bridge connecting the sides of the carapace below the body of tortoises and turtles.
skeletal structure protecting the abdomen of chelonians.