Lectures 1-2: Intro to Pulm, Anatomy, Histology Flashcards Preview

Pulmonology > Lectures 1-2: Intro to Pulm, Anatomy, Histology > Flashcards

Flashcards in Lectures 1-2: Intro to Pulm, Anatomy, Histology Deck (13):
1

When bronchi lose their cartilage they're called

Bronchioles

2

Describe respiratory epithelium

Ciliated, pseduostratified columnar, with goblet cells

3

The functional subunit of the lung...

Acinus

4

The lungs are designed for...(3)

Large surface area, short diffusion path, concentration gradients

5

Airspace is lined by (cell type)

Type I Epithelium

6

Components of the blood-air barrier

Thin cytoplasm of Type I pneumocyte, fused BMs, endothelial cell cytoplasm

7

Can Type I cells divide?

No

8

Describe Type II pneumocytes

Divide to replace injured Type I cells

9

What happens in chronic bronchitis/asthma

Increased airflow resistance --> impaired ventilation

10

What are some examples of alveolar filling diseases (2)? What does this lead to?

Pneumonia, edema --> impaired ventilation

11

Three ways to alter perfusion in lungs

Destruction of alveolar capillaries; alteration of pulmonary blood flow (pulmonary HT); obstruction of blood flow (thrombus)

12

Two ways to impair diffusion capacity

1. Loss of alveolar/endothelial area (emphysema); 2. Thickening of alveolar wall (fibrosis)

13

Four structural design for protection against the environment

Nasal hairs (larger particles), branching airways (collect medium particles), muco-ciliary escalator, alveolar macrophages (tiny particles)