Transcript Unit 3: The Respiratory System

Respiratory System
Mr. Gerlach’s
7th Grade
Health Education
Respiratory System
• Defn: Brings oxygen into the body and
removes carbon dioxide and other gases.
Activity on Lung Capacity !
• Who has the best lung capacity in the
class?
1. Balloon activity
2. 2 liter activity
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
Respiration in Action
• Respiration in Action
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
• Lung Cancer: Alveoli
destroyed; often
caused by smoking
• Graphic Picture!!!
Problems of the Respiratory System
• Emphysema: Alveoli destroyed; extreme
difficulty breathing; often fatal
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
Health Animations Diseases and Conditions Asthma