Other epithelial cells line the insides of the lungs, the gastrointestinal tract, the reproductive and urinary tracts, and make up the exocrine and endocrine glands. Functions of epithelial cells include secretion, absorption, protection, transcellular transport, sensation detection, and selective permeability.Endothelium (the inner lining of blood vessels) is a specialized form of epithelium.ther epithelial cells line the insides of the lungs, the gastrointestinal tract, the reproductive and urinary tracts, and make up the exocrine and endocrine glands. Functions of epithelial cells include secretion, absorption, protection, transcellular transport, sensation detection, and selective permeability.
 Don't Let Me Be Lonely Tonight  is a song written and performed by American singer-songwriter James Taylor, from his 1972 album One Man Dog. It was released as the lead single from the album, and peaked at #14 on the Billboard charts on January 13, 1973.Don't Let Me Be Lonely Tonight  is a song written and performed by American singer-songwriter James Taylor, from his 1972 album One Man Dog. It was released as the lead single from the album, and peaked at #14 on the Billboard charts on January 13, 1973.
 In the Air Tonight  is a song by English drummer, singer and songwriter Phil Collins.It first appeared on Collins' 1981 inaugural solo album, Face Value.n the Air Tonight remains a popular selection on many classic rock radio stations. It is the song most often associated with Collins' solo career, and he has performed versions of it at many events, most notably at Live Aid, where he played the song on a piano on the same calendar day in both Philadelphia and London.