Table of Contents
What prevents the collapse of air column in trachea?
The posterior of a trachea may be covered with a combination of horseshoe-shaped cartilages and trachealis muscle and an elastic connective tissue known as fibroelastic membrane which in turn helps the trachea to stretch and expand during inhalation and exhalation, as the rings of that cartilage help maintain rigid …
What prevents food from entering the trachea?
When you swallow, a flap called the epiglottis moves to block the entrance of food particles into your larynx and lungs. They also tightly close during swallowing. That prevents food from entering your lungs.
Which of the following prevents collapse of trachea during pressure variation?
The trachea is a cartilaginous tube formed by a series of tracheal cartilages, joined together by annular ligaments (Figs. 4-13, 4-15 and 6-9). These cartilages give the trachea rigidity and prevent its collapse.
Which tissue normally prevents the trachea and bronchial tubes from collapsing?
The trachea is about 4.5 inches long and 1 inch in diameter, and is comprised of smooth muscle and several c-shaped rings of cartilage. The rings of cartilage provide stability and help to prevent the trachea from collapsing and blocking off the airways.
Which of the following is responsible for preventing food from entering the trachea?
epiglottis
epiglottis – large , leaf-shaped piece of cartilage lying on top of larynx; during swallowing the larynx elevates, causing the epiglottis to fall on the glottis (opening into larynx) like a lid, closing it off – this prevents food from entering the windpipe (trachea).
Which of the following prevents the inward collapse of trachea wall?
Which of the following prevents collapsing of trachea cockroach?
taenidia
In cockroach, the cuticular lining is spirally thickened forming taenidia which prevents the tracheal tubes from collapsing.