Respiratory System - Lung Structure

Question 1

Main components of the respiratory system

Answer 1

Nose
Nasal cavity
Oral cavity
Oral cavity
Pharynx
Larynx
Trachea
Bronchus (L & R)
Lungs (L & R)

Question 2

Lungs surrounded by a membrane called

Answer 2

Pleural Membrane

Question 3

Pleural Membrane consists of

Answer 3

Parietal pleura - the outside layer
Visceral pleura - Inside layer
Pleural cavity - in between outside and inside layers

Question 4

Bronchial Tree

Answer 4

Trachea
Primary bronchi
Secondary bronchi 
Tertiary bronchi
Bronchioles
Terminal bronchioles

Question 5

The trachea is lined with

Answer 5

pseudostratified columnar ciliated epithelium with goblet cells

Question 6

The tracheal wall is supported by

Answer 6

C-Shaped rings of hyaline cartilage

Question 7

Bronchial airways are lined with

Answer 7

ciliated columnar epithelium (with goblet cells)

Question 8

The epithelial lining changes as the terminal bronchioles transition to respiratory bronchioles from

Answer 8

simple cuboidal cells to simple squamous cells

Question 9

Site of oxygen and carbon dioxide exchange in lungs

Answer 9

Alveoli

Question 10

Blood vessels closely associated with Alveoli are

Answer 10

Pulmonary capillaries

Question 11

Type 1 alveolar cells - function

Answer 11

main site of gas exchange

Question 12

Type 2 alveolar cells are also known as

Answer 12

septal cells

Question 13

Type 2 alveolar cells - function

Answer 13

Secrete alveolar fluid

which includes surfactant

Question 14

Gas exchange is done through

Answer 14

diffusion

Question 15

The across which gas exchange occurs is

Answer 15

RespiratorMembrane - very think 0.5um