Which evidence from the sea floor shows that tectonic plates move ? a) The sea floor is much older than any of the continents. b) The sea floor is youngest near a mid-ocean ridge and older farther away. c) Mid-Ocean ridges circle Eqarth like seams in a baseball d) The sea floor is thinner than continental crust.
The trachea, colloquially called the windpipe, is a tube that connects the pharynx and larynx to the lungs, allowing the passage of air, and so is present in almost all air-breathing animals with lungs.he trachea is lined with a layer of pseudostratified columnar epithelium, a type of epithelium. The epithelium contains goblet cells, which are glandular, modified simple columnar epithelial cells that produce mucins, the main component of mucus. Mucus helps to moisten and protect the airways.
The mucus helps clean the air to prevent particles from entering your body during swallowing. The larynx is perhaps best known as the organ that produces sounds, earning it the nickname the âvoice box.â The Bronchial Tree and Lungs. Trachea. The larynx connects your pharynx to your trachea, which is more commonly called the windpipe. The trachea runs about 4.5 inches from the larynx to the bronchi in the lungs, is about 1 inch in diameter, and is protected by rings of cartilage. Bronchi. When the trachea reaches your chest, it splits into two tubes called bronchi (singular: bronchus).