Section 1 Flashcards
Name the 3 main upper airway structures
Nasopharynx, oropharynx and laryngopharynx
What is the depression just behind the root of the tongue and between the folds of the throat called?
*This area identifies where the curved blade of the laryngoscope is placed during intubation.
Vallecula
The larynx consists of an outer casing of nine cartilages. How many are paired and unpaired?
Six are paired, three are unpaired
The most inferior unpaired cartilage in the larynx with a complete ring is called what?
Cricoid Cartilage
The U shaped Hyoid bone is located where?
Under the mandible and helps support the airway by anchoring muscles to the jaw.
The thyroid membrane joins the hyoid bone and the ______? This fibrinous membrane is know as the _______?
Thyroid Cartilage.
Cricothyroid membrane
Which bronchus is wider, shorter, and more vertical then the other
Right
The two lungs are separated by what?
The Mediastinum
Which lung is smaller and has fewer lobes? How many lobes? How many lobules? What about the other side?
Left is smaller and has two lobes and 10 lobules.
Right has 3 lobes and 11 lobules.
The Phrenic Nerve is composed mostly of motor nerve fibers. These motor nerve fibers produce contractions of what?
Diaphragm
Which nerve passes over the the brachiocephalic artery, posterior to the subcalvian vein and then crosses the root of the right lung anteriorly?
Right Phrenic Nerve
Which nerve passes over the pericardium of the left ventricle and enters the diaphragm separately?
The Left Phrenic Nerve
The mediatinum contains all the thoracic viscera except?
The lungs
