Larynx Flashcards Preview

Anatomy > Larynx > Flashcards

Flashcards in Larynx Deck (37):
1

What is the laryngopharynx?

The region of the pharynx from the epiglottis to the oesophagus

2

Where is the larynx?

Anterior to the laryngopharynx Between the carotid sheath structures

3

At which vertebral level is the larynx?

Between C4 and C6

4

At which vertebral level is the hyoid bone?

C3

5

At which level does the larynx become the trachea?

C6

6

What are the features of the skeleton of the larynx?

Epiglottis (elastic) Thyroid cartilage (hyaline) Cricoid cartilage (hyaline) 2x arytenoid cartilage (hyaline)

7

Which part of the skeleton of the larynx is the only complete ring?

The thin arch of the cricoid cartilage

8

What structure completes the posterior wall of the trachea?

Skeletal muscle - trachealis

9

What is the name of the membrane between the hyoid bone and the thyroid cartilage?

Thyrohyoid membrane

10

What is the name of the membrane between the cricoid cartilage and the thyroid cartilage and what is it's clinical significance?

Cricothyroid membrane Access point for cricothyroid puncture in an emergency

11

Which structure is being indicated here?

Q image thumb

Thyroid cartilidge

12

Which structure is being shown here?

Q image thumb

Thyrohyoid membrane

13

Which structure is being shown here?

Q image thumb

Right carotid sheath

14

Which structure is being shown here?

Q image thumb

Laryngeal inlet

15

Which structure is being shown here?

Q image thumb

Vallecula

16

Which kind of epithelium lines the larynx?

Respiratory mucosa
(Apart from the vocal chords)

17

Which kind of epithelium lines the vocal chords?

Stratified squamous epithelium

18

Which stuctures are being indicated here?

Q image thumb

Vestibular folds

19

Which structures are being indicated here?

Q image thumb

Vocal folds

20

What is the mucosal sensory nerve supply to the larynx superior to the vocal folds?

Superior laryngeal branches of the vagus nerve

21

What is the mucosal sensory nerve supply to the larnyx including and inferior to the vocal folds?

Recurrent laryngeal branches of the vagus nerve

22

Which structures are being indicated here and which nerve is this?

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Vagus nerve

A image thumb
23

Which structure is being indicated here?

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Vocal ligaments

24

Which structures are the vocal ligaments attached to?

Midline of the thyroid cartilage

Vocal processes of the arytenoid cartilages

25

What movement affects the tension of the vocal ligaments?

The tilt of the cricoid cartilage

26

Which movement affects the gap between the vocal ligaments?

The rotation of the arytenoid cartilage

27

What is the narrowest point of the larynx?

Rima glottidis

28

What happens to the rima glottidis when speaking?

Narrows to a slit

29

What shape is the rima glottidis during quiet breathing?

Diamond shaped

30

Which structure is being shown here?

Q image thumb

Cricothyroid muscle

31

Which movement does the cricothyroid muscle allow?

Pulls the arch of the cricoid cartilage upwards

32

What effect does contraction of the cricothyroid muscle have on the vocal chords?

Pushes the arytenoid cartilages backwards, making the vocal chords longer and tighter, narrowing the rima glottidis

33

What movement does the posterior cricoarytenoid muscle allow?

Rotation of the arytenoid cartilage, widening the vocal opening

34

What movement does the lateral cricoarytenoid muscle allow?

Pulls the arytenoid cartilage anteriorly and laterally, pulling the vocal chords towards the midline

35

Which two muscles act to shorten and narrow the vocal opening?

Thyroarytenoid

Transverse arytenoid

36

Which muscle is being shown here?

Q image thumb

Thyroarytenoid

37

Which muscle is being shown here?

Q image thumb

Transverse arytenoid