respiratory system why, oh why? or else we’ll die! our respiratory system provides our body with...
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RESPIRATORY
SYSTEM
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Why, oh why? Or else we’ll die!
Our Respiratory System provides our body with __________
for the purpose of ____________________. The energy (or
______) produced during respiration is used for
____________ processes and to maintain ____________
(dynamic equilibrium). In addition, this system allows us to
expel _________________.
Oxygen
Aerobic Respiration
ATP
Metabolic Homeostasis
Carbon Dioxide
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How do other organisms Respire?
Stomates: Openings on the underside of leaves lets
plants exchanges
gases.
Skin: Worms exchange gases
through their moist skin. **If worms dry out
they can’t respire!**
Fish: Use gills to absorb oxygen from the water and
release carbon dioxide.
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Plant RespirationPlant Respiration• Lenticles are small holes in woody stems of plants that allow for gas exchange.
• 3 Places Plants Exchange Gases:
• Roots
• Stomates
• Lenticles
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Human Respiratory System
3
h
12
Nose
Mouth
Nasal Cavity
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The Nasal Cavity has space which _____ the air, mucus membranes which the air and nose hairs which the air.
warmsmoistens
filters
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Human Respiratory System
3
h
12
Nose
Mouth
Nasal Cavity
4
5Larynx
Pharynx
epiglottis
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How do you speak, choke and/or have food come out your nose? Eww!!
Uvula, but what’s that hanging off it?
Adam’s apple
Click for cool link! Beatboxer Clip
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Human Respiratory System
3
h
12
Nose
Mouth
Nasal Cavity
4
5Larynx
Pharynx
epiglottis
67
88
Trachea
Bronchi Bronchi
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Bronchi and trachea: Rings of cartilage to keep open, mucus and beating hairs to clear passageway
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Human Respiratory System
3
h
12
Nose
Mouth
Nasal Cavity
4
5Larynx
Pharynx
epiglottis
67
88 Bronchi
TracheaLung
Bronchi
9
10
Bronchiole
Alveoli
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Lungs contain bronchioles and alveoli.
bronchiole1.
2. alveoli
3. capillary
• Alveoli are thin, one cell layer thick pockets surrounded by tiny blood vessels (called capilaries).
• Here oxygen diffuses
into the blood.
• Also carbon dioxide diffuses into the alveoli to be exhaled!
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Human Respiratory System
3
h
12
Nose
Mouth
Nasal Cavity
4
5Larynx
Pharynx
epiglottis
67
88 (same)
TracheaLung
Bronchi
9
10
Bronchiole
Alveoli11Diaphragm
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So……why do we breathe? And how?
We mostly breathe to rid ourselves of CO2
Inhale: ribs up and out, diaphragm down.
Exhale: ribs down, diaphragm up.
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Respiratory Disorders:Respiratory Disorders:AllergiesAllergies
Allergies are caused by benign (non-harmful) substances causing a histamine response in the body.
Histamines cause:
sneezing runny nose watery eyes
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Respiratory Disorders: ASTHMA
Causes of asthma:-Genetic-Exercise-Air contaminates (smog, pollen, cigarettes, etc)
What happens?-Muscles around the bronchioles tightens and won’t relax-Airways swell-Mucus is produced
This means there is less space in the airway and it becomes difficult to get enough oxygen in.
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Respiratory Disorders: BRONCHITIS
Infection and inflammation caused by: virus, bacteria,
asthma, smoking
Feels Like
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Smoking: The Self Inflicted Smoking: The Self Inflicted Respiratory Nightmare!Respiratory Nightmare!
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Smoking causes:
Bad hair!
Bad stink!Bad teeth!
Bad skin!
ADDICTION!!
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That was then…This is now!
Do you know this guy?Do you know this guy?
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Smoking causes: EMPHYSEMA
Alveoli are overstretched and lose their elasticity. The walls between alveoli also break
down, leaving less surface area.
It feels like you can’t get enough
air.
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Smoking causes
Cancer
laryngectomy
YouTube Clip
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