Trachea are generally highly elastic but they may calcify with age. The trachealis muscle connects the ends of the incomplete rings and contracts during coughing, reducing the size of the lumen of the trachea to increase the rate of air flow. The esophagus lies posteriorly to the trachea, adjoining along the tracheoesophageal stripe. Circular horizontal bands of fibrous tissue called the annular ligaments of trachea join the tracheal rings together. The cartilaginous rings are incomplete to allow the trachea to collapse slightly so that food can pass down the esophagus. A flap-like epiglottis closes the opening to the larynx during swallowing
My Name Is Jack My Name Is Jack "My Name Is Jack" is a song written by American record producer John Simon and released as a single by British group Manfred Mann in 1968. Their version reached number 8 on UK record charts. It became an international Top 10 hit, however, in the U.S., the song reached only #104. The lyrics and music were written by John Simon, and his own version was included on the soundtrack of the 1968 film "You Are What You Eat". The song tells the story of a resident of the " Greta Garbo Home for Wayward Boys and