1 In 1990, Barack Obama was elected as the first black president of the Harvard Law Review. 2  Obama, who graduated from HLS in 1991, would later represent Illinois in the U.S Senate, and in 2008 would become the 44 th President of the United States, and the first African-American president.
Most cancers in the lung are carcinomas-cancers of epithelial cells. The top pair of images shows the normal epithelium of the bronchi. This photomicrograph is greatly enlarged. The next three pairs of images show three successive stages of abnormal changes in the bronchial epithelium commonly found in smokers.
Asthma is a chronic (ongoing) disease of the airways in the lungs called bronchial tubes. Bronchial tubes carry air into and out of the lungs. In people with asthma, the walls of these airways become inflamed (swollen) and oversensitive.ung cancer is a disease in which abnormal (malignant) lung cells multiply and grow without control. These cancerous cells can invade nearby tissues, spread to other parts of the body, or both. The two major kinds of lung cancer are named for the way the cells look under a microscope. They are: 1  Small cell lung cancer.