Pharynx And Larynx

Question 1

Nasopharynx is posterior to… and superior to…

Answer 1

Nose
Soft palate

Question 2

Oropharynx is

Answer 2

Posterior to the mouth

Question 3

Laryngopharynx is

Answer 3

Posterior to the larynx

Question 4

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

Answer 4

Respiratory function
Choanae- pharyngeal tonsils

Question 5

What are the 3 constrictors of the pharyngeal

Answer 5

Superior
Middle
Inferior

Question 6

Superior constrictor is located

Answer 6

Above the hyoid bone and behind the angle of the mandible

Question 7

Middle constrictor is located

Answer 7

Level of the greater horn of the hyoid bone

Question 8

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

Answer 8

Stylopharyngeus

Question 9

Which is the largest constrictor and where is it located

Answer 9

Inferior

Question 10

What is the function of the constrictor muscles

Answer 10

Propel food into the esophagus

Question 11

Cricopharyngeus muscle is the

Answer 11

Inferior most portion of the inferior constrictor muscle

Question 12

What are the two functions of the cricopharyngeus

Answer 12

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

Question 13

What innervates the pharyngeal constrictor

Answer 13

Pharyngeal plexus

Question 14

What two branches make up the superior laryngeal nerve

Answer 14

Internal and external branches

Question 15

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

Answer 15

External is motor
Internal is sensory to larynx

Question 16

What is the internal nasopharynx lines with

Answer 16

Mucosa

Question 17

What is the cartilage of tube covered in mucosa

Answer 17

Torus tubarius

Question 18

What is on the posterior aspect of the tube

Answer 18

Salpingopharyngeal fold

Question 19

What is anterior to the levator veli palatini

Answer 19

Tensor veli palatini

Question 20

What is inferior to the levator veli palatini

Answer 20

Musculus uvulae

Question 21

What is posterior to the levator veli palatini

Answer 21

Salpingopharyngeus

Question 22

What muscles seal off the nasopharynx from oropharynx during swallowing

Answer 22

Levator and tensor veli palatini

Musculus uvulae

Salpingopharyngeus

Question 23

What innervate these muscles?

Musculus uvulae

Salpingopharyngeus

Answer 23

CN X

Question 24

Fauces are

Answer 24

Opening from the oral cavity to the oropharynx

Question 25

Flounces bounds Superiorly Inferiorly Laterally

Answer 25

Soft palate Root of the tongue Palatoglossal and palatopharyngeal arches

Question 26

Where is the tonsil lab fossa located

Answer 26

Between the arches and houses (palatine tonsils)

Question 27

How does the Laryngopharynx communicate with the larynx

Answer 27

Laryngeal inlet

Question 28

What is the piriform fossa

Answer 28

Small depression on each side of the inlet

Question 29

What underlies the piriform fossa

Answer 29

Superior and inferior laryngeal nerves

Question 30

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

Answer 30

Voice production Protect airways Nine

Question 31

What can close off the passage to the trachea

Answer 31

Vocal folds and conus elasticus

Question 32

What is the rima glottis

Answer 32

Space between the vocal cords

Question 33

What is anterior to the vestibule

Answer 33

Epiglottis

Question 34

What has no roles in voice production just a protective role

Answer 34

Vestibular folds

Question 35

What play a role in voice productions

Answer 35

Vocal folds

Question 36

What make up the vocal folds (2)

Answer 36

Vocal ligaments and vocalis muscles

Question 37

What cover the vocalis muscles

Answer 37

Mucous membranes

Question 38

What are the intrinsic muscles innervated by

Answer 38

External branch of the superior laryngeal nerve Other intristic muscles are innervated by inferior laryngeal nerve

Question 39

List the steps of swallowing (3)

Answer 39

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.

Question 40

What blood supplies the pharynx (3)

Answer 40

Ascending pharyngeal Ascending palatine and tonsillar branches Maxiallary and lingual

Question 41

Blood supply of the larynx (2)

Answer 41

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

Question 42

Blood supply of the larynx (2)

Answer 42

Superior thyroid artery and superior laryngeal branch

Question 43

What innervates the pharynx and the larynx (2)

Answer 43

Pharyngeal plexus : vagus nerve