Pneumococci Organism

This picture shows the organism Pneumococci. These bacteria are usually paired (diplococci) or appear in chains. Pneumococci are typically associated with pneumonia, but may cause infection in other organs such as the brain (pneumococcal meningitis) and blood stream (pneumococcal septicemia). (Courtesy of the Centers for Disease Control.)

Lungs

The major features of the lungs include the bronchi, the bronchioles and the alveoli. The alveoli are the microscopic blood vessel-lined sacks in which oxygen and carbon dioxide gas are exchanged.

White Nail Syndrome

White nail syndrome may also be called leukonychia. Leukonychia can occur with arsenic poisoning, heart disease, renal failure, pneumonia, or hypoalbuminemia.

Pneumococcal Pneumonia

This is a photomicrograph of the organism that causes pneumococcal pneumonia. The bacteria are round, but join together to form chains. Frequently, these join together to form pairs and are called diplococci; the prefix di means two.

Respiratory System

Air is breathed in through the nasal passageways, travels through the trachea and bronchi to the lungs.