Larynx, Trachea Anatomy

Question 1

The larynx lies in front of the _______, and is about __ cm long

Answer 1

esophagus

4

Question 2

How many cartilages are in the larynx?

Answer 2

9, 3 single and 3 paired

Question 3

What are the three cartilages beachy wants us to know in the larynx?

Answer 3

Thyroid cartilage
Cricoid cartilage
Epiglottic cartilage

Question 4

Which laryngeal cartilage is the largest? What does it look like?

Answer 4

Thyroid

A shield

Question 5

The thyroid cartilage is known as the ______ ______, is on the ______ aspect of the throat, and is made of ______ cartilage.

Answer 5

Adam’s apple
anterior
hyaline

Question 6

The cricoid cartilage connects the _______ to the ________ and is made from ______ cartilage.

Answer 6

Larynx
Trachea
Hyaline

Question 7

This cartilage is ring-like, anterior, and and is the most inferior.

Answer 7

Cricoid cartilage

Question 8

Describe the epiglottic cartilage

Answer 8

Spoon-shaped supportive plate in epiglottis

Question 9

What kind of cartilage is the epiglottic cartilage?

Answer 9

Elastic cartilage

Question 10

What two folds are in the larynx?

What are their anatomic names?

Answer 10

The false vocal folds- vestibular folds

True vocal folds- contain vocal cords

Question 11

Which vocal fold is superior? What is the space between the vocal folds called?

Answer 11

False vocal folds

laryngeal sinus

Question 12

What do the vestibular folds do?

Answer 12

Close the larynx during swallowing
Supported by the vestibular ligaments
No sound production- just a closing of the space

Question 13

What do the vocal cords do?

Answer 13

Produce sound

Question 14

What kind of epithelium covers the vocal cords? Why?

Answer 14

Covered with stratified squamous epithelium→ to better endure the vibration as air passes by

Question 15

What color are the vocal cords? Why are they this color? What kind of fiber came the vocal cord?

Answer 15

Contains elastic fibers, white in color, no blood supply

Question 16

What is the medial opening between the vocal folds?

Answer 16

The glottis

Question 17

What is the epiglottis and what does it do?

Answer 17

a flap of tissue that guards the opening of the larynx. It directs food and drink into the esophagus and contains the epiglottic cartilage

Question 18

The epiglottis is attached to…

Answer 18

Is attached to the thyroid cartilage

Question 19

Describe the movement of the epiglottis

Answer 19

Stands vertical at rest, folds over to cover larynx while swallowing

Question 20

Why do men have deeper voices? (hormone)

Answer 20

Androgens, the male sex hormone make the vocal cords longer and thicker in males, so they vibrate slower, creating a deeper voice

Question 21

The trachea is a tubular airway,_____ inches long, goes from the ________ to the ________ and is, ______ to the esophagus

Answer 21

4-5
6th cervical to the 5th thoracic ribs
Anterior

Question 22

What provides the “skeleton” of the trachea?

Answer 22

Made of 16-20 “C” shaped hyaline cartilages that strengthen and prevent collapse

Question 23

What provides the “skeleton” of the trachea?

Answer 23

Made of 16-20 “C” shaped hyaline cartilages that strengthen and prevent collapse

Question 24

Which way does the opening of the “C” shaped cartilages face? Why does it face that way?

Answer 24

The open end of the “C” faces back towards the esophagus, helps during swallowing

Question 25

What is the mucociliary escalator? What kind of epithelium is present?

Answer 25

The upward movement of debris by the cilia, how foreign objects are removed
pseudo-stratified ciliated epithelium

Question 26

What muscle is between the “C” cartilages? What kind of muscle is it?

Answer 26

Trachealis muscle

Smooth

Question 27

What two branches does the trachea split into?

Answer 27

Right and Left bronchus

Question 28

What is the carina?

Answer 28

Mucus membrane at the split of the bronchi, is very sensitive and is associated with the cough reflex