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
What a Beautiful Name Asker, Ligertwood said about the audience: Finally, she said about performing the song: In July 2017, the Voices of Lee, the "elite" a cappella singing group, posted a video of the song to their Facebook page. The cover was an instant hit and reached the so-called viral threshold of 5 million views in two days. As of October 2017, it had amassed 33 million views. The group represents Lee University in Tennessee; the video was filmed in the school's chapel. What a Beautiful Name "What a Beautiful Name" is a song by Australian praise and worship group Hillsong Worship. The