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SNC2D0
The Respiratory System
The Respiratory System is responsible for:
_____________________________________________________
_____________________________________________________
____________________________________________________.
I breathe ___________ per _________?? And
I move ___________ of air in and out of
my lungs __________day?
SNC2D0
The _______________ system relies on the _________________ system to distribute __________
to the cells and to remove _________ _____________.
O2
O2
CO2
CO2
(Figure #1, page 91)
Purpose of the Respiratory System
 Gas Exchange –
 Alveoli:



Homework:
CO2 O2
Pg 91-95 Q# 1-6, Pg 98 Q# 1-6
SNC2D0
Breathing
You just try to hold
your breath!!


Mechanics of Breathing
1. Diaphragm _________, increasing _________, decreasing __________, air moves
_____ lungs.
2. Diaphragm _________, decreasing _________, increasing _________, air moves
____ of lungs.
Exhalation
Volume ____________
Inhalation
Volume __________
Diseases of the Respiratory System:
1. Tuberculosis: contagious; caused by _________ in the lungs;
symptoms are _______, ________, ___________, ________ and
____________; diagnosed by ____________; treatment is
__________ or _________ in hospital.
2. Cancer: Lung cancer caused by carcinogens
3. SARS: Severe Acute Respiratory Syndrome.
Flu-like symptoms; X-rays shows proof
of pneumonia
Respiratory System in Other Animals:
In fish, the gas exchange organs are _________.
Summarize how gas exchange happens in fish.