Download Respiratory System

Respiratory
System
Respiratory System
• Defn: Brings oxygen into the body and
removes carbon dioxide and other gases.
Parts of the Respiratory System
• Nasal Cavity – Where
•
•
•
air enters the body
Mouth – Where air
enters the body
Pharynx – Another
name for the throat
cavity
Larynx – Voice Box
Parts of the Respiratory System
• Epiglottis –
The flap of skin
that covers the
trachea.
• Trachea – Directs
air into the lungs.
Parts of the Respiratory System
• Bronchi – Passages
through which air
enters the lungs
• Lungs – Transfer
oxygen into the blood
and remove carbon
dioxide from the lungs
Parts of the Respiratory System
•Pleura –
The outer
lining of
the lungs
Parts of the Respiratory System
• Diaphragm –
A large dome
shaped muscle
that separates the
lungs from the
abdomen
Parts of the Respiratory System
• Bronchial
tubes – Tubes
running from
the trachea to
the lungs
Parts of the Respiratory System
• Alveoli – Tiny air sacs in the lungs
Problems of the Respiratory System
• Flu / Colds: Caused by a virus; cough, runny
nose, aches fever
• Tuberculosis: Bacterial lung infection
• Allergies: Sneezing, itchy eyes, runny nose,
hives; caused by a reaction to a substance
• Pneumonia: Lung infection by bacteria or
viruses; fever, chest pain, difficulty breathing
Problems of the Respiratory System
• Bronchitis: Swelling of the bronchi due to
infection; cough fever, tightness in chest
• Asthma: Bronchial swelling and blockage;
wheezing, short breath, coughing
• Lung Cancer: Alveoli destroyed; often
caused by smoking
• Emphysema: Alveoli destroyed; extreme
difficulty breathing; often fatal