Week One - Upper Tract

Question 1

Where are the conchae?

Answer 1

Lateral walls of nasal cavity, superior, middle and inferior

Question 2

What are the functions of the nose?

Answer 2

Respiration - humidify, warm and filter air
Smell
Local secretions from sinuses and nasolacrimal duct

Question 3

What are the four paranasal sinuses?

Answer 3

Frontal
Ethmoid
Maxillary
Sphenoid

Question 4

How is the pharynx divided?

Answer 4

Nasopharynx - nose to lower border of soft palette
Oropharynx - lower border of sp to top of epiglottis
Laryngopharynx - below epiglottis

Question 5

What is the glottis?

Answer 5

Two vocal cords and opening called rima glottidis

Question 6

How do vocal cords move?

Answer 6

Vocal ligaments controlled by intrinsic muscles of the larynx - adduction to close abduction to open

Question 7

What sort of epithelium lines the upper respiratory tract?

Answer 7

Pseudostratified columnar ciliates with goblet cells

Question 8

What does the recurrent laryngeal nerve supply?

Answer 8

All intrinsic laryngeal muscles except one

Question 9

Nerve damage to RLN will result in what common symptom?

Answer 9

Horse voice

Question 10

Where does the RLN arise from?

Answer 10

Vagus nerve in root of the neck on right side and thorax on left side.
Curves around subclavian artery on right and around arch of aorta on left
Then back up the neck to larynx