The trachea is lined with a moist mucous-membrane layer composed of cells containing small hairlike projections called cilia. The cilia project into the channel (lumen) of the trachea to trap particles. There are also cells and ducts in the mucous membrane that secrete mucus droplets and water molecules.
Breeds of Livestock - Brahman Cattle. Brahman. The Brahman breed originated from Bos indicus cattle originally brought from India. Through centuries of exposure to inadequate food supplies, insect pests, parasites, diseases and the weather extremes of tropical India, the native cattle developed some remarkable adaptations for survival.
Cattle breeders in the southern. United States developed Brahman cattle between 1854 and 1926. The Brahman has a humped back, long, drooping ears and. loose skin. Like the camel, the Brahman stores food and water in. the odd-looking hump on its back. The hump is a deposit of fat.