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Human Structure Anatomy > Pharynx And Larynx > Flashcards

Pharynx And Larynx Flashcards

1
Q

Nasopharynx is posterior to… and superior to…

A

Nose
Soft palate

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2
Q

Oropharynx is

A

Posterior to the mouth

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3
Q

Laryngopharynx is

A

Posterior to the larynx

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4
Q

What is the function of the nasopharynx
What allows nose to open into the nasopharnyx

A

Respiratory function
Choanae- pharyngeal tonsils

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5
Q

What are the 3 constrictors of the pharyngeal

A

Superior
Middle
Inferior

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6
Q

Superior constrictor is located

A

Above the hyoid bone and behind the angle of the mandible

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7
Q

Middle constrictor is located

A

Level of the greater horn of the hyoid bone

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8
Q

What is coming down and inserting into the pharynx between the superior and middle?

A

Stylopharyngeus

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9
Q

Which is the largest constrictor and where is it located

A

Inferior

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10
Q

What is the function of the constrictor muscles

A

Propel food into the esophagus

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11
Q

Cricopharyngeus muscle is the

A

Inferior most portion of the inferior constrictor muscle

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12
Q

What are the two functions of the cricopharyngeus

A
  • prevent air from entering into the esophagus during breathing
  • prevent reflux of esophageal contents into the pharynx
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13
Q

What innervates the pharyngeal constrictor

A

Pharyngeal plexus

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14
Q

What two branches make up the superior laryngeal nerve

A

Internal and external branches

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15
Q

Which branch of superior laryngeal nerve is motor and which is sensory

A

External is motor
Internal is sensory to larynx

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16
Q

What is the internal nasopharynx lines with

A

Mucosa

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17
Q

What is the cartilage of tube covered in mucosa

A

Torus tubarius

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18
Q

What is on the posterior aspect of the tube

A

Salpingopharyngeal fold

19
Q

What is anterior to the levator veli palatini

A

Tensor veli palatini

20
Q

What is inferior to the levator veli palatini

A

Musculus uvulae

21
Q

What is posterior to the levator veli palatini

A

Salpingopharyngeus

22
Q

What muscles seal off the nasopharynx from oropharynx during swallowing

A

Levator and tensor veli palatini

Musculus uvulae

Salpingopharyngeus

23
Q

What innervate these muscles?

Musculus uvulae

Salpingopharyngeus

A

CN X

24
Q

Fauces are

A

Opening from the oral cavity to the oropharynx

25
Q

Flounces bounds

Superiorly
Inferiorly
Laterally

A

Soft palate
Root of the tongue
Palatoglossal and palatopharyngeal arches

26
Q

Where is the tonsil lab fossa located

A

Between the arches and houses (palatine tonsils)

27
Q

How does the Laryngopharynx communicate with the larynx

A

Laryngeal inlet

28
Q

What is the piriform fossa

A

Small depression on each side of the inlet

29
Q

What underlies the piriform fossa

A

Superior and inferior laryngeal nerves

30
Q

What is the job of the larynx (2)
Composed of how many diff cartilages

A

Voice production
Protect airways
Nine

31
Q

What can close off the passage to the trachea

A

Vocal folds and conus elasticus

32
Q

What is the rima glottis

A

Space between the vocal cords

33
Q

What is anterior to the vestibule

A

Epiglottis

34
Q

What has no roles in voice production just a protective role

A

Vestibular folds

35
Q

What play a role in voice productions

A

Vocal folds

36
Q

What make up the vocal folds (2)

A

Vocal ligaments and vocalis muscles

37
Q

What cover the vocalis muscles

A

Mucous membranes

38
Q

What are the intrinsic muscles innervated by

A

External branch of the superior laryngeal nerve

Other intristic muscles are innervated by inferior laryngeal nerve

39
Q

List the steps of swallowing (3)

A

Stage 1– voluntary; bolus is compressed against the palate and pushed from the
mouth to the oropharynx, mainly by movements of the tongue and soft palate.

Stage 2– involuntary and rapid; soft palate is elevated, sealing off the nasopharynx
from the oropharynx and laryngopharynx. The pharynx widens and shortens to
receive the bolus of food as the suprahyoid muscles and longitudinal pharyngeal
muscles contract, elevating the larynx.

Stage 3– involuntary; sequential contraction of all three pharyngeal constrictor
muscles creates a peristaltic ridge that forces the bolus inferiorly into the
esophagus.

40
Q

What blood supplies the pharynx (3)

A

Ascending pharyngeal
Ascending palatine and tonsillar branches
Maxiallary and lingual

41
Q

Blood supply of the larynx (2)

A

Superior thyroid artery and superior laryngeal branch
Inferior thyroid artery and inferior laryngeal branch

42
Q

Blood supply of the larynx (2)

A

Superior thyroid artery and superior laryngeal branch

43
Q

What innervates the pharynx and the larynx (2)

A

Pharyngeal plexus : vagus nerve

Human Structure Anatomy (5 decks)

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