Prelim | Respiratory System | Trachea

Question 1

Other term for the trachea

Answer 1

Windpipe

Question 2

Size (dimensions) of the trachea

Answer 2

12cm (5”) long
2.5 cm (1”) diameter

Question 3

Shape of the trachea

Answer 3

Tubular

Question 4

Location of the trachea

Answer 4

Anterior to esophagus
Extends from larynx to superior border of T5

Question 5

Layers of the trachea

Answer 5

• Mucosa
• submucosa
• hyaline cartilage
• adventitia

Question 6

Function of the trachea

Answer 6

Passageway of air

Question 7

Structure of trachea’s mucosa

Answer 7

Epithelial layer of pseudostratified ciliated columnar epithelium

Question 8

Provides the same protection against dust as the membrane lining of the nasal cavity and larynx

Answer 8

Mucosa

Question 9

Structure of trachea’s submucosa

Answer 9

Areolar connective tissue

Question 10

Contains seromucous glands and their ducts

Answer 10

Submucosa

Question 11

Structure of trachea’s hyaline cartilage

Answer 11

16–20 incomplete, horizontal connected by dense connective tissue

Question 12

Provide semirigid support to maintain patency so that the tracheal wall does not collapse inward (especially during inhalation) and obstruct the air passageway

Answer 12

Hyaline cartilage

Question 13

Structure trachea’s adventitia

Answer 13

Areolar connective tissue

Question 14

Innermost layer of the trachea

Answer 14

Mucosa

Question 15

Outermost layer of the mucosa

Answer 15

adventitia