Trachea & Bronchi

Question 1

anatomical position of the trachea?

Answer 1

C6 to T4/5

Question 2

trachea is anterior to the oesophagus. T or F.

Answer 2

T

Question 3

the patency/open airway of the trachea is maintained by what?

Answer 3

15-20 horseshoe shaped hyaline cartilages

Question 4

the submucosa of the trachea has a high content of what?

Answer 4

elastic fibres (to allow for recoil during respiration)

Question 5

which muscle controls the diameter of the trachea?

Answer 5

trachealis muscle (at the back of the trachea)

Question 6

Tracheostomy is performed at the 2nd or 3rd rings. T or F.

Answer 6

T- at the 1st ring can cause sub-glottic stenosis (a narrowing of the airway in the part of the voice box below the vocal cords-glottis)

Question 7

where does the trachea divide?

Answer 7

lower border of T4

Question 8

inhaled particles tend to pass to which lung?

Answer 8

right lung (cuz right bronchus is more vertical and wider than the left one)

Question 9

On total length of the trachea (10 cm), _____ are in the neck from cricoid cartilage to jugular notch.

Answer 9

5 cm

Question 10

in the groove between the trachea and the oesophagus is what?

Answer 10

recurrent laryngeal nerve

Question 11

mucous membrane in the trachea?

Answer 11

pseudostratified columnar ciliated epithelium with goblet cells, tubuloacinar mucous glands

Question 12

Function of the trachea?

Answer 12

• Hyaline cartilage keep the airway open
• Trachealis muscle controls diameter of tube
• Mucous traps particles, humidifies air
• Cilia help to eliminate debris
• Capillary network warms air