Respiratory System

Question 1

Answer 1

Alveoli

C capillaries E endothelial cells M alveolar macrophages (dust cells) P1 type I pneumocytes (alveolar lining cells) P2 type II pneumocyte

Question 2

Answer 2

Bronchiole

Art pulmonary artery branch M smooth muscle N neuroendocrine cells

Question 3

Answer 3

Layers of trachea

RE respiratory epithelium LP lamina propria SM submucosa F fibroelastic tissue

Lamina propria consists of loose, highly vascular supporting tissue which becomes more condensed at its deeper aspect to form a band of fibroelastic tissue.

Question 4

Answer 4

Nasal mucosa

M mucus glands RE respiratory epithelium (pseudostratified columnar ciliaed epithelium) S serous glands M mucus glands V blood vessels

Question 5

Answer 5

Primary bronchus

C cartilage support G seromucinous glands LP lamina propria M smooth muscle RE respiratory epithelium SM submucosa

Cartilage support is in flattened interconnected plates rather than distinct rings.

Question 6

Answer 6

Pulmonary elastic tissue

Ma alveolar macrophage

Question 7

Answer 7

Respiratory epithelium in lung

L lymphoid tissue forms a component of Waldeyer’s ring of lymphoid tissue protecting the entry portals of the respiratory and gastrointestinal systems.

Question 8

Answer 8

Terminal respiratory bronchioles

Question 9

Answer 9

Terminal respiratory bronchioles

A alveoli AD alveolar duct AR alveolar ring AS alveolar sacs R respiratory bronchioles T terminal bronchiole V vein

Question 10

Answer 10

Tertiary (segmented) bronchus

C cartilage framework G seromucinous glands L lymphocytes M smooth muscle SM submucosa

Question 11

Answer 11

Trachea

C cartilage L longitudinal muscle T trachealis muscle