Respiratory tract: Trachea

Question 1

What is the position of the trachea?

Answer 1

Sits in front of the oesophagus and below larynx

Question 2

What maintains the structure of the trachea?

Answer 2

C shaped rings of cartilage

Question 3

What does the trachea go into?

Answer 3

Right and left bronchi to each lung

Question 4

What does it branch into?

Answer 4

Each lobe of each lung- 3 in right 2 in left- lobar bronchi

Question 5

What do lobes branch into?

Answer 5

Segmental bronchi and many further branches ending in terminal bronchioles and alveoli

Question 6

What happens as bronchi branch beyond the segmental bronchi?

Answer 6

Less and less cartilage until there is none in the alveolar ducts

Question 7

What happens to the smooth muscle as the cartilage decrease?

Answer 7

Layer of smooth muscle increases

Question 8

What does no cartilage and smooth muscle enable?

Answer 8

Bronchioles to alter in diameter to meet the oxygen demands of the body