A part of a line consisting of two points and all the points between them. Is a point at one end of a segment or the starting point of a ray, a dot on a line. Is a point of a line that starts at an endpoint and extends forever. Are two rays that have a common endpoint and form a line.
To relieve pleurisy symptoms, your doctor may recommend: 1  Acetaminophen or anti-inflammatory medicines (such as ibuprofen) to control pain. 2  Codeine-based cough syrups to control coughing. 3  Lying on your painful side.  Breathing deeply and coughing to clear mucus as the pain 1  eases. Getting plenty of rest.
Causes of pleurisy. Pleurisy is inflammation of the pleura. It's usually caused by another condition, such as an infection, but sometimes no cause can be identified.The pleura are two thin sheets of tissue that separate the lungs and ribcage.One is attached to the ribcage and the other is attached to the lungs.auses of pleurisy. Pleurisy is inflammation of the pleura. It's usually caused by another condition, such as an infection, but sometimes no cause can be identified.