Lecture 21: Airway Anatomy (Final Exam) Flashcards
What structure is indicated by 1 in the figure below?
Epiglottic Cartilage
What structure is indicated by 2 in the figure below?
Foramen for superior laryngeal artery and nerve (right)
What structure is indicated by 3 in the figure below?
Right corniculate cartilage
What structure is indicated by 4 in the figure below?
Thyrohyoid membrane
Which of the following would the be the narrowest point in the airway for a pediatric patient?
III (cricoid cartilage)
Which of the following would the be the narrowest point in the airway for an adult patient?
II (vocal ligaments)
What structure is indicated by 2 in the figure below?
Superior Laryngeal Nerve
What structure is indicated by A in the figure below?
Internal Branch of the Superior Laryngeal Nerve
What type of information is transmitted via the internal branch of the superior laryngeal nerve?
Sensory innervation to larynx
What structure is indicated by B in the figure below?
External Branch of the Superior Laryngeal Nerve
Where does the external branch of the superior laryngeal nerve synapse at?
Cricothyroid muscle
What structure is indicated by C in the figure below?
What role does this structure have?
- Left Inferior Laryngeal Nerve
- Sensory innervation to Trachea and motor innervation to all laryngeal muscles (minus the cricothyroid muscle).
What structure is indicated by 3L in the figure below?
Left Recurrent Laryngeal Nerve
What structure is indicated by 3R in the figure below?
Right Recurrent Laryngeal Nerve
Differentiate the anatomical differences between the left and right recurrent laryngeal nerves.
- Right: loops under the brachiocephalic artery
- Left: loops under the aortic arch
What structure is indicated by D in the figure below?
What role does this structure have?
- Right Inferior Laryngeal Nerve
- Sensory innervation to Trachea and motor innervation to all laryngeal muscles (minus the cricothyroid muscle).
What cranial nerve innervates all of the pertinent nerves to the larynx and trachea?
CN X (Vagus)
What structure is indicated by 2 below?
Vocal Ligaments
What structure is indicated by 3 below?
Cricoid Cartilage
What structure is indicated by 10 below?
Conus Elasticus
What structure is indicated by 7 below?
Corniculate Cartilage
Where would tissue for “false” vocal cords be located in the figure below?
In between 2 and 3 on the Conus Elasticus
What structure is indicated by 1 on the figure below?
Thyrohyoid Membrane
What structure is indicated by 2 on the figure below?
Foramen for superior laryngeal artery and nerve