1.
The lower respiratory tract includes the _______, ________, __________ and ________.
2.
The ______ (aka the ________) is an enlargement at the top of the trachea.
3.
The larynx has three important functions. They are to provide a _________, to act as a _________ to route air and food into the proper channels and for ____________.
4.
The larynx is composed of a framework of ______ and ____ bound by _________.
5.
______ is named for the gland that covers it and is the shield-like structure that protrudes in the front of the neck.
A. 
B. 
C. 
D. 
E. 
6.
________ is ring-shaped and is the lowermost point of the larynx.
A. 
B. 
C. 
D. 
E. 
7.
_________ is large, leaf-shaped cartilage that stimulates a cough reflex when something other than air enters the larynx.
A. 
B. 
C. 
D. 
E. 
8.
_______ is ladle-shaped.
A. 
B. 
C. 
D. 
E. 
9.
The thyroid cartilage is composed of ________ and is sometimes referred to as the ________.
10.
The cricoid cartilage lies ________ to the thyroid cartilage.
11.
The epiglottis usually remains _____ during breathing. This allows air to enter the ________. When eating, it moves upward due to ___________ and the base of the ______ presses the epiglottis _________ which causes it to ______.
12.
The arytenoid cartilage is located ______ to and on the other side of the ________.
13.
The ______ are superior folds in the mucous membrane that are located in the larynx.
A. 
B. 
C. 
D. 
E. 
14.
The false vocal cords are also known as the _________. They are covered by typical ______ and are relatively ________. They do not function in the production of ______ but instead help to prevent foreign objects from entering the ____ and help protect delicate ___________. Muscles within these folds also help close the larynx during _________.
15.
_____ is related to the tension on the vocal chords. The tighter the true vocal cords are pulled by the actions of the ______ the higher the pitch of sounds. The true vocal cords of males are ______ and _______ and thus produce lower tones
16.
The ________ or ______ of a sound is related to the force of the air passing over the cords. _______ sounds are produced by using stronger blasts of air to cause cords to ________. The true vocal cords do not move as we whisper, but when we yell they ________.
17.
The _____ is the triangular opening between the vocal cords that leads into the trachea. When food or liquid is swallowed, it is closed by muscles in the ________. This prevents food/drink from entering the _________.
18.
The ________ continues to filter the incoming air and traps particles and moves them upward to the _______ by the action of the ________.
19.
The _____ is a thin-walled tube joining the larynx to the primary bronchi.
20.
Another name for the trachea is the _________.
21.
The trachea is _____ inches in length and ___ inches in width.
A. 
B. 
C. 
D. 
E. 
22.
The trachea is very flexible and mobile. It lies anterior to the _____ and is the ______ for _____.
23.
The trachea consists of ________ rings composed of ____________. There are about _____ incomplete rings that open __________. These prevent the trachea from _______ and blocking the airway. Gaps on the incomplete rings are filled with _________ and ____. They allow the _______ room to expand into the trachea when swallowing.
24.
The mucous membrane of the trachea is made up of _____________ with numerous _________. ______ beat in an upward direction, moving foreign substances trapped in the mucus away from the ______ and to the ______ where they are ________. __________ inhibits and ultimately destroys cilia which means that _______ is the only means of preventing mucus from accumulating in the lungs.
25.
_______ is a thick layer of CT supporting the mucosa. It contains _____ that open onto the _____ surface.