Structure of the Respiratory system Flashcards Preview

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Flashcards in Structure of the Respiratory system Deck (14):
1

Function of the respiratory system

Exchange of gases between the atmosphere and the blood

2

What are the two main parts of the Respiratory system?

Upper respiratory system
Lower respiratory system

3

Upper Respiratory system- Function

-Collects air
-Filters contaminants from the air
-Delivers it to the lower respiratory organs

4

Components of the upper respiratory system

-Nose-external portion
-Nasal cavity- ciliated mucous membrane, filter microbes
-Pharynx- ciliated mucous membrane
-Tonsils-aggregations of lymphoid tissue

5

Components of the lower respiratory system

-Larynx-vocal cords
-Trachea
-Bronchi
-Bronchioles-series of tubes
-Alveoli-small air sacs
-Diaphragm-muscle involved in breathing

6

Protective components of the lower respiratory

-Ciliated mucous membrane
-Alveolar macrophages
-Secretory antibodies

7

Normal Microbiota of the Respiratory System- Lower

-Typically microorganisms are not present

8

Normal Microbiota of the Respiratory System- Upper

-Normal microbiota:
-Remove nutrients
-Produce substances
-Limit growth of pathogenic organisms
-Some are opportunistic pathogens

9

Examples of normal microbiota

-Haemophilus influenzae- nose
-Staphylococcus aureus- normal microbiota
-Diphtheroids- nose and nasal cavity

10

Bacterial Diseases of the Upper Respiratory System

- Bacteria can infect the upper respiratory system
-Cause soar throat

11

Examples of bacterial upper respiratory infections

-Streptococcal respiratory diseases
-Diphtheria

12

Bacterial Diseases of the Lower Respiratory System

-Lower respiratory organs=axenic
-Life-threatening illness can result

13

Examples of bacterial infections of the lower respiratory system

-Bacterial pneumonia
-Pertussis (whooping cough)
-Tuberculosis

14

Fungal Infections of the Lower Respiratory System

Pneumocystis pneumonia is a common fungal pneumonia of AIDS patients

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