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Gorss Anatomy 2 Exam 2 > Larynx > Flashcards

Larynx Flashcards

(50 cards)

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1
Q

What are the functions of the larynx

A

Prevent the passage of food into airway
Regulates the flow of air into lungs
Vocalization

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2
Q

How long is the larynx

A

3cm

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3
Q

What vertebral level can the larynx be found at

A

C3 and C6

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4
Q

What are the cartilages of the larynx

A 
Thyroid cartilage
Cricoid Cartilage
Epiglottic Cartilage
Arytenoid Cartilages
Corniculate Cartilages
Cuneiform Cartilages
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5
Q

What part of the Thyroid cartilage is known as the adams apple?

A

Laryngeal Prominence

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6
Q

What part of the thyroid cartilage articulates with the cricoid cartilage to form the cricoid joint

A

Inferior horn

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7
Q

What does the oblique line of the thyroid cartilage provide attachment for?

A

Inferior constrictor
Sternothyroid
thyrohyoid muscles

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8
Q

What part of the thyroid cartilage articulates with the greater horn of the thyroid bone?

A

Superior Horn

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9
Q

Which laryngeal cartilage is shaped like a signet ring

A

Cricoid cartilage

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10
Q

What attaches the epiglottic Cartilage to the laryngeal prominance

A

Thryoepiglottic ligament

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11
Q

Which laryngeal cartilage gives attachment to the vocal ligament and intrinsic muscles of the larynx

A

Arytenoid Cartilages

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12
Q

Which laryngeal cartilages can ossify and be mistaken as a fracture on an X-ray

A

Corniculate Cartilages

Cuneiform Cartilages

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13
Q

What are the joints of the larynx

A

Cricothyroid joint

Criocarytenoid joint

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14
Q

What does the cricothyroid joint permit

A

Rotation of the thyroid cartilage around a horizontal axis

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15
Q

What does the cricoarytenoid joint permit

A

Gliding and rotation of the arytenoid cartilage on the cricoid cartilage

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16
Q

What are the ligaments of the larynx

A 
Thyrohyoid membrane
median criocothyroid ligament
Vocal ligament
Conus Elasticus
Quadrangular membrane
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17
Q

What pierces the Thyrohyoid membrane

A

Internal laryngeal nerve

Superior laryngeal vessels

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18
Q

What does the superior margin of the quadrangular membrane form

A

Aryepiglottic ligament within aryepiglottic flod

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19
Q

What does the inferior margin of the quadrangular membrane form

A

Vestibular ligament within the vestibular fold

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20
Q

What are the two folds in the larynx

A 
vestibular folds (False Cords)
Vocal Folds (True Cords)
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21
Q

What is the function of the vestibular folds?

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A

Protection - initiates coughing reflex

22
Q

What forms the bulk of the vocal fold/.

Study These Flashcards
A

Vocalis muscles

23
Q

What is the space between vestibular folds

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A

Rima Vestibuli

24
Q

What is the space between the vocal folds

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A

Rima Glottidis

25
What is the narrowest part of the laryngeal cavity
Rima Glottidis
26
What are the three cavities of the larynx
Laryngeal Vestibule - Laryngeal inlet to False Cords Laryngeal Ventricles - Between true and false cords Infraglottic Cavity - Vocal fold to cricoid cartilage
27
What part of the laryngeal ventricle contains glands that lubricate the vocal folds?
Laryngeal saccule
28
What is the primary function of the extrinsic laryngeal muscles
Elevate and Depress the Larynx as a whole
29
What is Partial Aphoria
Horssness in voice
30
What are the causes of Partial Aphoria
Depletion of lubricant in laryngeal saccule | inflammation of vocal folds (Laryngitis)
31
What are the Elevators of the Larynx
``` Thyrohyoid Stylohyoid Mylohyoid Digastric Stylopharyngeus Palatopharyngeus ```
32
What are the Depressors of the Larynx
Omohyoid Sternohyoid Sternothyroid
33
What are the intrinsic muscles of the Larynx
``` Cricothyroid Posterior Cricoarytenoid Lateral Cricoartyenoid Transverse Arytenoid Oblique Artenoid Aryepiglottic Thyroepiglottic Thyroarytenoid Vocalis ```
34
Which intrinsic laryngeal muscle is not innervated by the recurrent laryngeal nerve? What innervates it?
Cricothyroid | External laryngeal nerve
35
What is the function of the Cricothyroid
Increase pitch
36
What is the largest intrinsic laryngeal muscle
Posterior Cruciartyenoid Muscle
37
What muscle allows us to open up out throat when we breath deeply
Posterior Cruciartyenoid muscle
38
What muscle allows us to whisper?
Lateral cricoarytenoid muscle
39
What two muscles are responsible for closing the Rima Glotiddis when we cough/sneeze
Transverse arytenoid muscle | Oblique arytenoid muscle
40
What muscle is a continuation of the oblique arytenoid and closes the laryngeal inlet when swallowing
Aryepiglottic muscle
41
What muscle deepens pitch
Thyroarytenoid muscle
42
What muscle is involved fine tuning of vocal cords
Vocalis muscles
43
What is phonation
speaking
44
Why do males have a lower voice
Length of vocal cords Size of resonating chamber Thickness of cords
45
What hormone causes vocal cords the thicken
Androgen
46
What nerves innervate the larynx
Recurrent Laryngeal nerve Internal laryngeal nerve External laryngeal nerve
47
What nerve provides sensory supply to the mucosa below the vocal folds and motor to most laryngeal muscles
Recurrent laryngeal nerve
48
What nerve provides sensory supply to the mucosa above the vocal folds
Internal laryngeal nerve
49
What nerve gives motor supply to the cricothyroid and interior constrictor muscles
External laryngeal nerve
50
What arteries give blood supply to the laynx
Superior laryngeal artery | Inferior laryngeal artery

Gorss Anatomy 2 Exam 2 (12 decks)

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