From the start to the end of the month, the length of the day increases by 53 minutes, implying an average day-over-day increase of 1.8 minutes. The shortest day of the month is February 1 with 10:34 hours of daylight; the longest day is February 29 with 11:27 hours of daylight.
A tracheostomy is a surgically made hole that goes through the front of your neck into your trachea, or windpipe. A breathing tube, called a trach tube, is placed through the hole and directly into your windpipe to help you breathe. A tracheostomy may be used to help people who need to be on ventilators for more than a couple of weeks or who have conditions that block the upper airways.
The epiglottis closes the opening to the larynx during swallowing. The trachea develops in the second month of development. It is lined with an epithelium that has goblet cells which produce protective mucins. An inflammatory condition, also involving the larynx and bronchi, called croup can result in a barking cough. A tracheotomy is often performed for ventilation in surgical operations where needed. Intubation is also carried out for the same reason by the inserting of a tube into the trachea.