The national self-interest dictated to Jawaharlal Nehru a policy of non-alignment, which in essence meant keeping an independence of policy, not aligning with power blocs or making pre-commitments, keeping our options open, not taking decisions on pre-conceived notions, and judging each issue on its merits.
The peritoneum is a continuous transparent membrane which lines the abdominal cavity and covers the abdominal organs (or viscera). It acts to support the viscera, and provides a pathway for blood vessels and lymph.
The two pleural membranes surround the lungs, which rest on the diaphragm. Each is a double membrane. The outer surface of the pleural membrane is called the visceral pleura, and the membrane that lines the body wall is called the parietal pleura. In between the two layers of the pleural membranes there is pleural liquid.