... SeeLEK.Arm The section of the wing between the body and the CARPALJOINT, the rest of the wing constituting the HAND. The bones of the arm are the HUMERUS,RADIUSand 'ulna'. The SECONDARYandTERTIARYfeathers ... Acclimatisation 11Abdomen The rear section of the body, containing the REPRODUCTIVESYSTEMand the major part of the ALIMENTARYSYSTEM. The otherbody divisions are the head and the THORAX.Aberrant ... digested. The gut beginsat the mouth and its main sections are the OESOPHAGUS(with or wi thoutaCROP), the GIZZARDand the INTESTINE,ending at the CLOACA.Included in the alimentary system are the...