The respiratory system's primary function is to supply the blood with oxygen and remove carbon dioxide. It does this through breathing, which involves inhaling oxygen and exhaling carbon dioxide through the nasal cavity, pharynx, larynx, trachea, bronchial tubes, and lungs. Diseases of the respiratory system include asthma, bronchitis, pneumonia, and lung cancer. Antibiotics, antihistamines, and decongestants are common drugs used to treat respiratory infections.

1. Function of the Respiratory System
S U P P LY
The primary function of the respiratory system is
to supply the blood with oxygen in order for the
blood to deliver oxygen to all parts of the body

2. Why is the Respiratory System
function important to all humans?
• Because the respiratory system is the
breathing system. When we breathe,
we inhale oxygen and exhale carbon
dioxide. This exchange of gases is the
respiratory system's means of getting
oxygen to the blood. To ensure that the
body receives enough oxygen and to
expel waste carbon dioxide.

3. The Respiratory System Organs
• Nasal Cavity
• Pharynx
• Larynx
• Trachea
• Bronchial tubes
• Lungs

4. Diseases Associated with the
Respiratory System
• Croup • Atelectasis
• Diphtheria • (COPD)
• Pertussis • (CF)
• Asthma • Emphysema
• Bronchiectasis • (SIDS)
• Bronchogenic • (TB)
carcinoma
• (ARDS)
• Asbestosis

5. Drugs to treat Respiratory Systems
Infections
• Antibiotic Generic and Brand Names
– Kills bacteria causing - ampicillin
respiratory infections.
- amoxicillin
- Amoxil
- ciprofloxacin
- Cipro

6. Drugs to treat Respiratory Systems
Infections
• Antihistamine • Fexofenadine
– Blocks the effects of • Allegra
histamine that has been
released by the body
• Ioratadine
during an allergy attack. • Claritan
• Diphenhydramine
• Benadryl

7. Drugs to treat Respiratory System
Infections
• Decongestant • oxymetazoline
– Reduces stuffiness and • Afrin
congestion throughout
the respiratory system
• Dristan
• Sinex
• pseudoephedrine
• Drixoral
• Sudafed