histology of respiratory

Question 1

trachea

Answer 1

20 c shaped cartilage rings, gaps between rings are filled by muscle and fibroelastic tissue
submucosal and mucosa are adapted to moisten and warm the environment

Question 2

describe mucosa

Answer 2

cilated pseudostratified columnar epithelium with goblet and basal cells

Question 3

describe submucosa

Answer 3

mixed sero-mucus glands and traps particles from air moving along Respiratory tract and has goblet cells to stop bacteria getting into the lungs

Question 4

adventitia

Answer 4

connects surrounding tissue to trachea, contains nerves, vessels and adipose tissue

Question 5

describe bronchi

Answer 5

2 primary bronchi which split into secondary and tertiary. discs of cartilage

Question 6

describe bronchioles

Answer 6

no cartilage or glands. decrease in height until they become simple columnar Bronchioles possess cells that secrete a substance which makes surfactant. These cells
are known as Clara (Club) cells