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Head And Neck ~ Anatomy > Larynnx > Flashcards

Larynnx Flashcards

1
Q

Cartilages seen from the anterior view of Larynx

A

Epiglottis
Thyroid Cartilage
Cricoid Cartilage

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2
Q

The only cartilage which forms Complete Ring

A

Cricoid Cartilage

In front side - Cricoid Arch

In back side - Cricoid Lamina

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3
Q

Tritiate is what type of cartilage

A

Elastic cartilage present in the Thyrohyoid membrane

And is the 4th Pair

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4
Q

UnPaired Cartilage of Larynx

A

Epiglottis
Thyroid Cartilage
Cricoid Cartilage

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5
Q

Paired Cartilage of Larynx

A

Arytenoid

Corniculate

Cuneiform

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6
Q

Total Number of Laryngeal Cartilages

A

3 Paired + 3 Unpaired + (4th Pair)

= 9 > 11

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7
Q

Which type of Cartilage will Ossify

A

Hyaline Cartilage

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8
Q

Hyaline Cartilages in Larynx

A

Thyroid Cartilage
Cricoid Cartilage
Arytenoid Cartilage (except Apex - is elastic)

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9
Q

Elastic Cartilages of Larynx

A

Epiglottis
Corniculate
Cuneiform
Apex of the Arytenoid

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10
Q

Thickening of Lower end of Quadrangular Membrane is

A

Vestibular Ligament

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11
Q

Thickening of Upper part of Cricovocal Membrane is

A

Vocal Ligament

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12
Q

Space between Vestibular Fold is

A

Rima Vestibuli

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13
Q

Space between Vocal fold is

A

Rima Glottidis

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14
Q

Space between Laryngeal Inlet and Vestibular fold is

A

Vestibule

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15
Q

Space between Vestibular fold and Vocal Fold is

A

Ventricle or Sinus

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16
Q

Space below Vocal Fold

A

Infra Glottic Compartment

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17
Q

Forward extension from the Ventricle is

A

Saccule of the larynx

Present between the quadrangular membrane and thyroid cartilage

18
Q

A Projection Present between the quadrangular membrane and thyroid cartilage is

A

Saccule ~ has mucous gland - secrets mucous

19
Q

Vocal cord is lined by ____________ epithelium

A

Stratified Squamous Epithelium

And mucous glands are absent in vocal cord

20
Q

Oilcan of larynx is

A

Saccule has mucous glands

21
Q

Vocal process of Arytenoid Cartilage gives attachment to

A

Vocal Ligament

22
Q

Action of Thyroarytenoid Muscle

A

Decreases the Space between Thyroid and Arytenoid →

Decrease in Length (shortening)of Vocal Ligament →

Relaxes Vocal Cord

23
Q

Posterior part of Vocalis Muscle behaves like

A

Behave like ThyroArytenoid Muscle ~ Relaxes the Vocal Cord

24
Q

Action of Anterior Part of Vocalis Muscle

A

Tense the Vocal Cord

25
Q

Action of CricoThyroid Muscle

A

Increases the Tension of Vocal Ligament

Cricoid Arch Moves Up towards Thyroid Cartilage

Cricoid Lamina - Move Down

Vocal Ligament - Move Down

Tenses the Vocal Cord

26
Q

Adduction of Vocal Cord is done by which muscles

A

Transverse Arytenoid and Lateral Crico-arytenoid Muscle

27
Q

Abduction of Vocal Ligaments done by which muscle

A

Posterior Crico-arytenoid Muscle

28
Q

Safety Muscle Of Larynx

A

Posterior Crico-arytenoid Muscle

Allows air to enter the larynx

29
Q

Muscle Controlling the Laryngeal Inlet

A

Aryepiglotticus - close the Larynx

Thyroepiglotticus - open the larynx

OT ~ opening by Thyroepiglotticus

30
Q

Aryepiglottic Fold consists of

A

Aryepiglotticus Muscle and Thyroepiglotticus Muscle

31
Q

Laryngeal inlet is opened by

A

Thyroepiglotticus Muscle

32
Q

Aryepiglotticus Muscle is continuation of

A

Oblique muscle

33
Q

Superior Laryngeal Nerve is a branch of

A

Vagus Nerve

34
Q

Superior Laryngeal Nerve is divided into

A

Internal Laryngeal Nerve and External Laryngeal Nerve

35
Q

External Laryngeal Nerve Supplies ____________ Muscle

And it is closely accompanied by _________

A

It supplies Cricothyroid Muscle

Closely accompanied by Superior Thyroid Artery

36
Q

Internal Laryngeal Nerve Supplies

A

Sensory supply to Laryngeal Mucosa above the Vocal cord

37
Q

Sensory Supply To Laryngeal Mucosa Below the Vocal Cord is supplied by

A

Recurrent Laryngeal Nerve

Is Mixed Nerve

38
Q

Vocal Cord is supplied by which nerve?

A

Both Internal and Recurrent Laryngeal Nerve

39
Q

The anastomosis between Internal Laryngeal Nerve + Recurrent Laryngeal Nerve is called

A

Galllen’s Anastomosis

40
Q

Motor Supply to all muscles of Larynx is supplied by

Except

A

Recurrent Laryngeal Nerve gives motor supply to all Intrinsic Laryngeal muscles except

Cricothyroid Muscle

41
Q

The patient is having aspiration but no voice change. Which nerve is affected?

A

Internal Laryngeal Nerve is injured

No Cough Reflex

Aspiration without voice change

42
Q

Safety Nerve of Larynx

A

Internal Laryngeal Nerve

Supplying Laryngeal Mucosa above the Vocal Fold

If any foreign body enters in this part of larynx

Internal Laryngeal Nerve will get Stimulated

Initiate the Cough Reflex

Prevents aspiration

Head And Neck ~ Anatomy (16 decks)

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