Asthma is also a pulmonary disease in which there is obstruction to the flow of air out of the lungs, but the obstruction is usually reversible and between attacks of asthma the flow of air through the airways is usually good. COPD is also called chronic obstructive lung disease (COLD).
Definition of Thorax. 1. n. The part of the trunk between the neck and the abdomen, containing that part of the body cavity the walls of which are supported by the dorsal vertebrÃ¦, the ribs, and the sternum, and which the heart and lungs are situated; the chest. Definition of Thorax.
For other uses, see Crab (disambiguation). Crabs are decapod crustaceans of the infraorder Brachyura, which typically have a very short projecting tail (abdomen) (Greek: Î²ÏÎ±ÏÏÏ / brachys = short, Î¿á½ÏÎ¬ / Î¿ura = tail), usually entirely hidden under the thorax.