Clinical Relevance Of The Larynx 2 Flashcards

1
Q

What are the two types of pretracheal fascia

A

Visceral or muscular

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2
Q

Where si the larynx found.

A

Anterior to laryngopharynx
Between carotid sheaths
Between c4-c6

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3
Q

What sit he larynx an important factor in

A

Upper RESP tract

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4
Q

What does the larynx communicate with

A

Oro and naso pharynx above

Becomes trachea below at c6 cricoid cart

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5
Q

How does the larynx help the URT

A

Keeps it open/patent

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6
Q

What si the larynx made of

A

Rigid Skelton of cartilage and little bone

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7
Q

What are the other functions of the larynx

A

Help prevent entry of foreign bodies - vocal cords and cough reflex

Produce sound - vocal cords

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8
Q

What does the full Skelton of the larynx consist of

A
Epiglottis Hyoid bone 
Thyrohyoid mem
Thyroid cartilage 
Crop thyroid mem 
Cricoid cart 
Trachea
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9
Q

What is the only complete ring of cartilage

A

Cricoid

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10
Q

What si the Cricothyroid mem imp For

A

Access for puncture

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11
Q

Why is the epiglottis different

A

Made of elastic cartilage rather than hyaline

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12
Q

What does the trachea consist of

A

C ring of cartilage but smooth muscle trachealis maintain patency

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13
Q

What are the parts of the thyroid mem

A

SUPEIROR horn of the thyroid Cart
Laryngeal prominence
Inferior horn of thyroid cart

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14
Q

What does the cricoid cartilage consist of

A

Arch

Lamina

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15
Q

What kind of joint is the Cricothyroid joint

A

Synovial

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16
Q

What does the Cricothyroid joint allow

A

A-P movement of the head allowing nodding

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17
Q

What a re the processes of the arytenoid cartilages

A

Corniculate
Muscular
Vocal

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18
Q

What are the vocal cords

A

Thickened ligaments between thyroid cart and vocal processes of arytenoid carts

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19
Q

Where are the cuneiform and corniculate ligaments located

A

Deep to laryngeal muscle

20
Q

What do the corniculate and cuneiform cartilages do

A

Support laryngeal inlet not part in moving vocal cords

21
Q

What si the rims glottidus

A

Space between vocal cords where air passes

22
Q

What si the vocal cord

A

Vocal ligament covered in mucosa vocal fold

23
Q

How many carts

24
Q

What are the pairs of cart

A

3 pairs

Corniculate
Cuneiform
Arytenoids

25
What a re the single carts
3 Epiglottis Thyroid Cricoid
26
What is an endotracheal intubation
Placing a breathing tube inside the trachea
27
What si the endotracheal tube inserted through
Mouth or nasal cav Oropharynx Laryngeal inlet Rima glottidus Trachea
28
What si the endotracheal tube not inserted into
Main bronchi as May inflate only one lung and the other will collapse
29
What is a laryngoscopy
Viewing inside the larynx with a laryngoscope
30
How do u carry out a largngoscopy
Blade inserted in valeculla,a between tongue and epiglottis
31
What kind of mucosa is in the larynx
Respiratory epithelium
32
What kind of epithelia are the vocal cords
Stratified squamous epi
33
Since the epi of the larynx is RESP what does this mean
Sec mucous Cilia waft to pharynx Mucociliary escalator
34
What divides the laryngeal mucosa
Vocal cords
35
What are false vocal cords called
Vestibular folds
36
Where are the false vocal cords and what do they do
Superior to true | Thickened folds to protect airway
37
What are the true vocal cords called when covered in mucosa
Vocal fold
38
What nerve innervates the laryngeal mucosa
Vagus
39
What parts of the vagus innervate what part of the larynx
Superior to vocal fold - internal laryngeal branches of superior laryngeal branch of vagus Inferior I to vocal fold and vocal fold - recurrent laryngeal branches of vagus
40
What does the recurrent laryngeal nerve loop
Under and back up at aorta arch
41
What are some details about the intrinsic muscles of the larynx
All skeletal muscle All voluntary Move vocal cords - tensors, extensirs, adductors, abductors All supplied with motor branches of vagus
42
What do the crucothyroid mucles do
Tense vocal cords | Nodding at joints
43
What are the thyroartyeinid carts
Relax vocal cords | Pull arytenoids to thyroid
44
What do the lateral crico arytenoid carts do
Adduct vocal cords | Rotate arytenoid cart So that the vocal processes if carts come together midline
45
What do the arytenoid muscles do
Traverse and oblique Assist lat crico to gently close rima glottidus Sphincter function Crico thyroid also contracts
46
What does the post crico arytenoid do
Adduct vocal cords Rotate arytenoid carts so vocal processes carts move Winded rima glottidus
47
What does the pretracheal fascia enclose
``` Strap muscles Thyroid gland Trachea Larynx Oes Pharynx Recurrent largest nerves ```