Lyme disease is an infection transmitted by the bite of ticks carrying the spiral-shaped bacterium Borrelia burgdorferi. The disease was named for Lyme, Connecticut, the town where it was first diagnosed in 1975 after a puzzling outbreak of arthritis.ate disseminated disease and chronic lyme disease. Weeks, months, or even years after an untreated tick bite, symptoms can appear in several forms, including: 1  Fatigue, forgetfulness, confusion, mood swings, irritability, numbness.
Pleura of the Lungs. Each lung is enclosed within a cavity that is surrounded by the pleura. The pleura (plural = pleurae) is a serous membrane that surrounds the lung. The right and left pleurae, which enclose the right and left lungs, respectively, are separated by the mediastinum.he major function of the lungs is to perform gas exchange, which requires blood from the pulmonary circulation. This blood supply contains deoxygenated blood and travels to the lungs where erythrocytes, also known as red blood cells, pick up oxygen to be transported to tissues throughout the body.
Each lung is contained within a pleural cavity, the space between the outside of the lung and inside of the chest wall. Pleural membranes cover the outside of the lungs and line the inside of the chest wall.leural Cavities and Membranes. The thoracic cavity contains the lungs along with other organs, such as the heart. Each lung is contained within a pleural cavity. Each pleural cavity is defined by a space surrounding each lung and is lined by a pleural membrane.