Podcast
Questions and Answers
What is the primary reason why the tongue can cause airway obstruction?
What is the primary reason why the tongue can cause airway obstruction?
- It has underlying tissue and muscle, which relaxes when the brain is suppressed. (correct)
- It lacks underlying tissue and muscle.
- It is not affected by brain suppression.
- It is disconnected from the mandible.
Which maneuver effectively addresses airway obstruction caused by the tongue?
Which maneuver effectively addresses airway obstruction caused by the tongue?
- Abdominal thrusts
- Head tilt
- Jaw thrust (correct)
- Cricoid pressure
Which of the following is NOT a primary function of the larynx?
Which of the following is NOT a primary function of the larynx?
- Protecting the vocal cords
- Facilitating sound and speech
- Releasing saliva (correct)
- Controlling tension of vocal cords during breathing
Which single cartilage of the larynx acts as a flap over the trachea to prevent food from entering?
Which single cartilage of the larynx acts as a flap over the trachea to prevent food from entering?
Which of the following is a paired laryngeal cartilage?
Which of the following is a paired laryngeal cartilage?
What type of nerves transmit sensory information during the pharyngeal reflex?
What type of nerves transmit sensory information during the pharyngeal reflex?
The Medulla Oblongata, which is involved in the gag reflex is close to which other control centers?
The Medulla Oblongata, which is involved in the gag reflex is close to which other control centers?
Which structure listed, is NOT found in the larynx?
Which structure listed, is NOT found in the larynx?
Flashcards
Tongue as an Airway Obstruction
Tongue as an Airway Obstruction
The tongue is a major cause of airway obstruction when someone is unconscious. This is because its tissue and muscles relax, blocking the airway.
Jaw Thrust Maneuver
Jaw Thrust Maneuver
The jaw thrust maneuver opens the airway by pulling the tongue forward, away from the back of the throat.
Pharyngeal Reflex (Gag Reflex)
Pharyngeal Reflex (Gag Reflex)
The pharyngeal reflex is triggered when foreign objects touch the back of the tongue. It causes gagging, which helps to expel the object.
Larynx Function
Larynx Function
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Larynx Anatomy
Larynx Anatomy
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Epiglottis Function
Epiglottis Function
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Arytenoid Cartilage Function
Arytenoid Cartilage Function
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Laryngeal Reflex
Laryngeal Reflex
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Study Notes
Airway Obstruction
- Tongue is a major cause of airway obstruction, especially during sedation or unconsciousness.
- The tongue's connection to the mandible makes a jaw thrust an effective treatment.
- Pharyngeal reflex (gag reflex) is triggered by foreign objects entering the back of the tongue.
- Sensory nerves (vagus and glossopharyngeal) send messages to the medulla oblongata.
- This reflex center is near vomiting, saliva, and cardiac centers, which may be stimulated during gagging.
Laryngeal Reflex
- This reflex prevents objects from entering the trachea by closing the vocal cords.
- Sensory nerves (superior laryngeal nerve) detect foreign objects on the mucosa and send a message to the brain stem's medulla.
- The medulla sends a message down the recurrent laryngeal nerve.
- The recurrent laryngeal nerve contracts the thyroarytenoid muscles, closing the vocal cords.
Larynx Anatomy
- Important for protecting vocal cords, facilitating speech/sound, and coughing.
- The larynx includes nine cartilages, three paired and three unpaired.
- The unpaired cartilages are the epiglottis (flap over trachea), thyroid (largest--Adam's apple), and cricoid (signet ring shape).
- Arytenoid cartilages control vocal cord movement.
- Corniculate and cuneiform cartilages play a role in vocal cord tension.
Bronchus Anatomy
- The bronchus angle is important for the placement of an endotracheal tube.
- The right bronchus is angled more anteriorly (towards the chest), while the left is more posterior (towards the back).
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