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gross II exam 2 > larynx basic info > Flashcards

larynx basic info Flashcards

1
Q

what are the functions of the larynx?

A

1 prevent passage of food into airway during swallowing
2 regulates flow of air into lungs
3 functions in vocalization

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2
Q

the low larynx is directly associated with what?

A

speech

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3
Q

what is the length of the larynx?

A

5cm and lies between C3 and C6

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4
Q

what are the 5 cartilages of the larynx?

A 
Thyroid
Cricoid
Arytenoid 
Corniculate 
Cuneiform
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5
Q

what does structures does the thyroid cartilage present?

A 
Superior thyroid notch
Inferior thyroid notch 
Laryngeal prominence
Superior horn
Inferior horn- articulates wit cricoid 
Laminae 
Oblique line
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6
Q

the oblique line of the thyroid cartilage provides attachment for what?

A

Inferior constrictor
Sternothyroid
Thyrohyoid muscles

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7
Q

where does the cricoid cartilage end?

A

C6, where trachea begins

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8
Q

what is the shape of the cricoid cartilage?

A

signet ring

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9
Q

which is the most inferior of the laryngeal cartilages?

A

cricoid cartilage

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10
Q

what is the shape of the epiglottic cartilage and where does it lie?

A

spoon shaped and it lies behind the root of the tongue and body of hyoid bone

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11
Q

what is the shape of the cricoid cartilage?

A

it consists of a narrow anterior arch and a broad, posterior lamina

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12
Q

the lower end of the epiglottic cartilage is attached to the back of the laryngeal prominence of the thyroid cartilage by what?

A

thyroepiglottic ligament

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13
Q

arytenoid cartilages are what type of cartilages and what is their shape?

A

it is a paired cartilage with a pyramidal shape

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14
Q

what are the 2 processes of the arytenoid cartilage?

A

vocal process- vocal ligament

muscular process- intrinsic muscles

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15
Q

what are the 2 joints of the larynx?

A

cricothyroid joint
cricoarytenoid joint

both synovial mobile

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16
Q

what type of joint is the cricothyroid joint?

A

hinge/ginglymis

17
Q

what is the function of the cricoarytenoid joint?

A

moves vocal cords by moving arytenoid cartilage

18
Q

what are the ligaments of the larynx?

A 
Thyrohyoid membrane
Median cricothyroid ligament 
Vocal ligament
Conus elasticus 
Quadrangular membrane
19
Q

which is the ligament that vibrates to produce sound?

A

vocal ligament

20
Q

what does the quadrangular membrane connect?

A

connects the epiglottic cartilage to the arytenoid cartilage on each side

21
Q

what are the margins of the quadrangular membrane?

A

superior- aryepiglottic ligament w/in fold

inferior- vestibular ligament w/in fold

22
Q

what are the 2 folds of the larynx and their alternate names?

A

Vestibular folds- false vocal cords

Vocal folds- true vocal cords

23
Q

which fold is protective in function and initiates cough reflex?

A

vestibular fold- false vocal cord

24
Q

what is the space between the vestibular folds called?

A

rima vestibuli

25
Q

what is the space between the vocal folds called? it is the narrowest part of the laryngeal cavity?

A

rima glottidis

26
Q

what structures do the vocal folds contain?

A

vocal ligament

vocalis muscle

27
Q

what is the name of the rima glottidis and vocal folds combined?

A

glottis

28
Q

what are the 3 cavities of the larynx?

A

Laryngeal vestibule
Laryngeal ventricles
Infraglottic cavity

29
Q

which cavity extends from the laryngeal inlet to the vestibular folds?

A

laryngeal vestibule

30
Q

which cavity lies between the vestibular folds and vocal folds?

A

laryngeal ventricles

31
Q

which cavity extends from the vocal folds to the inferior border of the cricoid cartilage?

A

infraglottic cavity

32
Q

what is the name for a small diverticulum within the laryngeal ventricle that contains glands which lubricate the vocal folds?

A

laryngeal saccule

33
Q

what is another name for the “oil can” of the vocal folds?

A

laryngeal saccule

gross II exam 2 (12 decks)

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