Larynx, Trachea Anatomy Flashcards
The larynx lies in front of the _______, and is about __ cm long
esophagus
4
How many cartilages are in the larynx?
9, 3 single and 3 paired
What are the three cartilages beachy wants us to know in the larynx?
Thyroid cartilage
Cricoid cartilage
Epiglottic cartilage
Which laryngeal cartilage is the largest? What does it look like?
Thyroid
A shield
The thyroid cartilage is known as the ______ ______, is on the ______ aspect of the throat, and is made of ______ cartilage.
Adam’s apple
anterior
hyaline
The cricoid cartilage connects the _______ to the ________ and is made from ______ cartilage.
Larynx
Trachea
Hyaline
This cartilage is ring-like, anterior, and and is the most inferior.
Cricoid cartilage
Describe the epiglottic cartilage
Spoon-shaped supportive plate in epiglottis
What kind of cartilage is the epiglottic cartilage?
Elastic cartilage
What two folds are in the larynx?
What are their anatomic names?
The false vocal folds- vestibular folds
True vocal folds- contain vocal cords
Which vocal fold is superior? What is the space between the vocal folds called?
False vocal folds
laryngeal sinus
What do the vestibular folds do?
Close the larynx during swallowing
Supported by the vestibular ligaments
No sound production- just a closing of the space
What do the vocal cords do?
Produce sound
What kind of epithelium covers the vocal cords? Why?
Covered with stratified squamous epithelium→ to better endure the vibration as air passes by
What color are the vocal cords? Why are they this color? What kind of fiber came the vocal cord?
Contains elastic fibers, white in color, no blood supply
What is the medial opening between the vocal folds?
The glottis
What is the epiglottis and what does it do?
a flap of tissue that guards the opening of the larynx. It directs food and drink into the esophagus and contains the epiglottic cartilage
The epiglottis is attached to…
Is attached to the thyroid cartilage
Describe the movement of the epiglottis
Stands vertical at rest, folds over to cover larynx while swallowing
Why do men have deeper voices? (hormone)
Androgens, the male sex hormone make the vocal cords longer and thicker in males, so they vibrate slower, creating a deeper voice
The trachea is a tubular airway,_____ inches long, goes from the ________ to the ________ and is, ______ to the esophagus
4-5
6th cervical to the 5th thoracic ribs
Anterior
What provides the “skeleton” of the trachea?
Made of 16-20 “C” shaped hyaline cartilages that strengthen and prevent collapse
What provides the “skeleton” of the trachea?
Made of 16-20 “C” shaped hyaline cartilages that strengthen and prevent collapse
Which way does the opening of the “C” shaped cartilages face? Why does it face that way?
The open end of the “C” faces back towards the esophagus, helps during swallowing
What is the mucociliary escalator? What kind of epithelium is present?
The upward movement of debris by the cilia, how foreign objects are removed
pseudo-stratified ciliated epithelium
What muscle is between the “C” cartilages? What kind of muscle is it?
Trachealis muscle
Smooth
What two branches does the trachea split into?
Right and Left bronchus
What is the carina?
Mucus membrane at the split of the bronchi, is very sensitive and is associated with the cough reflex
