Upper Airway

Question 1

What is the last area in the upper airway?

Answer 1

larynx

Question 2

Lateral walls of the nose

Answer 2

alae

Question 3

Vestibule

Answer 3

space created by alae, contains vibrissae

Question 4

Bones dividing the fossae into more passageways (2 names)

Answer 4

turbinates/conchae

Question 5

Openings that lead from the internal nose to nasopharynx (3 names)

Answer 5

choanae/internal nares/posterior naris

Question 6

The nasal septum consists of:

Answer 6

plate of ethmoid bone, vomer bone, septal and nasal cartilages

Question 7

Posterior septum consists of:

Answer 7

vomer and ethmoid bones

Question 8

The hard palate consists of (#) bones

Answer 8

4

Question 9

hard palate bones and orientation

Answer 9

maxilla = anterior
palatine = posterior

Question 10

histology of the anterior nasal cavity:

Answer 10

1/3 = squamous, non-ciliated epithelium

Question 11

histology of the posterior nasal cavity:

Answer 11

2/3 pseudostratified, ciliated, columnar epithelium with mucus secreting glands

Question 12

Nasal capillaries contain ________ allowing water transport

Answer 12

fenestrations

Question 13

What are the 4 pairs of paranasal sinuses called?

Answer 13

1. frontal
2. ethmoid
3. sphenoid
4. maxillary

Question 14

What is the muscle of the soft palate and tongue called? What does it do?

Answer 14

palatoglossus, closes the oropharyngeal isthmus (fauces)

Question 15

The sensory innervation of the tongue is primarily by: (2)

Answer 15

1. Glossopharyngeal nerve IX

2. Lingual nerve

Question 16

What does the glossopharyngeal nerve IX provide?

Answer 16

taste and general sensation from pharyngeal part of the tongue

Question 17

What does the lingual nerve provide?

Answer 17

general sensory innervation from the anterior 2/3 or oral part of the tongue

Question 18

Nasopharynx: (3)

Answer 18

1. choanae to soft palate (uvula)
2. adenoids/pharyngeal tonsils
3. eustachian tubes

Question 19

Oropharynx: (2)

Answer 19

1. uvula to base of tongue

2. palatine/faucial tonsils

Question 20

Opening between oral cavity and oropharynx is called the:

Answer 20

fauces

Question 21

Laryngopharynx is located:

Answer 21

base of tongue to opening of esophagus

Question 22

Muscles of the pharynx (2) and function:

Answer 22

1. longitudinal - shorten and widen pharynx (swallowing)

2. circular - moves food along

Question 23

Innervation of the pharynx: (2)

Answer 23

1. Glossopharyngeal nerve (CN#9)

2. Vagus nerve (CN#10)

Question 24

Intact gag reflex implies:

Answer 24

intact CN #9 and #10