lecture 23 Flashcards

(43 cards)

1
Q

framework of larynx

A
  • musculocartilaginous structure
  • comprised of three unpaired and three paired cartilages
  • sits atop the trachea
  • average length is 44mm for males and 36mm for females
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

where is the larynx

A

sits atop the trachea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what kind of structure is larynx

A

musculocartilaginous

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what is larynx comprised of

A

3 unpaired and 3 paired cartilages

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what does hyoid bone do

A

provide union between tongue and laryngeal structure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what shape is hyoid

A

u shaped being open in posterior side

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

hyoid bone articulates with what

A

articulates loosely w the superior cornu of thyroid cartilage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what is greater cornu of hyoid

A

lateral surface of corpus projecting posteriorly

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

parts of hyoid

A

corpus or body (attachment for muscles), greater cornu, lesser cornu

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

thyroid cartilage

A
  • unpaired cartilage - largest
  • rocks backward/forward and elevates/depresses
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

parts of thyroid cartilage

A
  • prominent anterior surface made of two plates - thyroid laminae
  • joined at midline - thyroid angle
  • superior most point is the thyroid notch (adam’s apple)
  • posterior aspect is open
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

vocal folds attach to what

A

vocal folds attach to thyroid just behind thyroid notch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

superior cornu

A

articulates w hyoid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

inferior cornu

A

articulates with cricoid cartilage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what is superior most point of thyroid cartilage

A

thyroid notch (adam’s apple)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

cricoid cartilage

A

unpaired - ring shape - sits on trachea
posterior lamina - connects to arytenoid cartilage
lateral surface - connects with thyroid inferior horns
cricothyroid joint - pivot joint permits rotation of the two structures

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

posterior lamina of cricoid cartilage

A

connects to arytenoid cartilage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

lateral surface of cricoid cartilage

A

connects w thyroid inferior horns

19
Q

arytenoid cartilage

A
  • paired cartilage
  • sits on posterior portion of cricoid cartilage
  • posterior attachment for vocal folds
20
Q

vocal processes of arytenoid cartilage

A

vocal processes project anteriorly toward thyroid notch

21
Q

muscular process of arytenoid cartilage

A

muscular process projects laterally - point of attachment for muscles

22
Q

where does arytenoid cartilage sit

A

on posterior portion of cricoid cartilage

23
Q

what is posterior attachment for vocal folds

A

arytenoid cartilage

24
Q

arytenoid cartilage is posterior attachment for what

25
corniculate cartilages
- paired cartilage - sits on superior surface of each arytenoid cartilage - prominent landmarks in aryepiglottic folds
26
epiglottis
- unpaired cartilage - leaf like structure arises from inner surface of thyroid cartilage just below notch - valleculae space
27
what is epiglottis attached by
thyroepiglottic ligament
28
epiglottis joined with what
laterally joined w arytenoid cartilages via the aryepiglottic folds
29
epiglottis projects where
projects upward beyond the larynx and above hyoid bone
30
epiglottis attached to
root of tongue by ligaments and the hyoid bone via the hyoepiglottic ligament
31
epiglottis has what kind of sinuses
pyriform sinuses - lateral recesses
32
surface of epiglottis is
covered w a mucous membrane lining
33
cuneiform cartilages
paired cartilages embedded within aryepiglottic folds
34
cuneiform cartilages situated where
above and anterior to corniculate cartilages
35
cuneiform cartilages do what
provide support for membranous laryngeal covering
36
nonspeech laryngeal function
- most important role is protection - prohibits entry of foreign objects into the lungs - cough - sensation to irritant object, vagus nerve
37
throat clearing
- build pressure in subglottal region and clamp the vocal folds shut to restrain the presssure - places vocal folds under a great deal of strain
38
abdominal fixation
- capturing air within the thorax to provide the muscles with a structure to push/pull - similar to cough - take in large breath, tight adduction of vocal folds - thorax becomes rigid frame - some air may escape through adducted vocal folds and may grunt when lifting heavy objects
39
breathing
normal breathing requires vocal folds to be abducted
40
during forced exhalation (like exercising)
need for air causes you to increase the abduction of vocal folds
41
which non speech laryngeal function makes thorax a rigid frame
abdominal fixation
42
which non speech laryngeal function captures air within thorax to provide the muscles w a structure to push/pull
abdominal fixation
43
which non-speech laryngeal function builds pressure in the subglottal region and clamps the vocal folds shut to restrain the pressure
throat clearing