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.
The lungs occupy most of the space in the thoracic cavity. The heart sits between the right and left lung. The lungs are soft and spongy because they are mostly air spaces surrounded by the alveolar cells and elastic connective tissue. Each lung is enclosed by a double-layered serous membrane, called the pleura.The visceral pleuron is firmly attached to the surface of the lung. Visceral pleura is continuous with the parietal pleura that lines the wall of the thorax. The small space between the visceral and parietal pleurae is the pleural cavity.he lungs occupy most of the space in the thoracic cavity. The heart sits between the right and left lung. The lungs are soft and spongy because they are mostly air spaces surrounded by the alveolar cells and elastic connective tissue. Each lung is enclosed by a double-layered serous membrane, called the pleura.