Newton-Health

1. The Respiratory SystemThe Respiratory System

2. Lungs

3. Lungs
• The left lung is slightly smaller then the
right lung.

4. Lungs
• The left lung is slightly smaller then the
right lung.
• Average adult breathes around 12-20
times a minute.

5. Lungs
• The left lung is slightly smaller then the
right lung.
• Average adult breathes around 12-20
times a minute.
• Inside lungs are about 30,000 bronchioles.

6. Lungs
• The left lung is slightly smaller then the
right lung.
• Average adult breathes around 12-20
times a minute.
• Inside lungs are about 30,000 bronchioles.
• At the end of the bronchioles are small
sacks called alveoli.

7. Lungs
• The left lung is slightly smaller then the
right lung.
• Average adult breathes around 12-20
times a minute.
• Inside lungs are about 30,000 bronchioles.
• At the end of the bronchioles are small
sacks called alveoli.
• Alveoli holds lots of blood vessels which is
where the oxygen exchange takes place.

8. StructureStructure

9. Respiratory System

10. Respiratory System
• respiration- process of getting and using
oxygen in the body

11. Respiratory System
• respiration- process of getting and using
oxygen in the body
• When a person inhales, air is pulled into
the nose and mouth.

12. Respiratory System
• respiration- process of getting and using
oxygen in the body
• When a person inhales, air is pulled into
the nose and mouth.
• The air travels down into the trachea.

13. Respiratory System
• respiration- process of getting and using
oxygen in the body
• When a person inhales, air is pulled into
the nose and mouth.
• The air travels down into the trachea.
• In the chest, the trachea divides into two
bronchial tubes.

14. Breathing Problems
Signs someone may be struggling with
getting oxygen:

15. Breathing Problems
Signs someone may be struggling with
getting oxygen:
• bluish lips, fingers, or fingernails

16. Breathing Problems
Signs someone may be struggling with
getting oxygen:
• bluish lips, fingers, or fingernails
• confusion, lightheadedness, weakness

17. Breathing Problems
Signs someone may be struggling with
getting oxygen:
• bluish lips, fingers, or fingernails
• confusion, lightheadedness, weakness
• sweating

18. Breathing Problems
Signs someone may be struggling with
getting oxygen:
• bluish lips, fingers, or fingernails
• confusion, lightheadedness, weakness
• sweating
• sitting in tripod position

19. Air is breathed in
through the nose or
mouth into the
nasal cavity.
The passage of
oxygen…..

20. • Air then passes
the pharynx or
larynx otherwise
know as the voice
box, this is found in
the throat.

21. Air then passes the
epiglottis, which is
a flap of elastic
cartilage covered.
There are taste buds
on the epiglottis,
this helps stop food
coming back up!

22. The air then
passes down
the trachea
also know as
the windpipe.
(this is like the
trunk of a tree)
•This is a
flexible tube
held open by
rings of
cartilage.

23. •Once the
windpipe
reaches the
lungs it splits
in two. Air then
passes down
into the two
thick tubes
called the
bronchi. (like
the branches of
a tree)

24. The air then
goes into the
smaller
divisions
called
bronchioles
(like twigs on
a tree)

25. •Connected to the
end of bronchioles
(the twigs of a tree)
are tiny air sacs
called Alveoli,
they have thin walls
so air can pass
through them into
the blood stream.
They look like a
bunch of grapes
(these are like the
leaves on a tree).
Mouth – lungs – blood- heart – blood - body

26. Tiny capillaries surround the alveoli and help in the gaseous exchange
as you can see there are red ones (oxygenated) and blue ones
(deoxygenated)
This is where the cardiovascular and respiratory system link together
There are over 600
million air sacks like
these in your alveoli

27. The diaphragm is
a sheet of muscle
below the lungs.
As you inhale your
diaphragm
contracts and your
chest cavity gets
bigger to receive in
oxygen, as you
exhale you
diaphragm relaxes
and your chest
cavity gets smaller
forcing out the
carbon dioxide out.

28. Intercostal
muscles are a
group of muscles
that run between
the ribs, and help
form and move the
chest wall.
The intercostal
muscles are
mainly involved in
the mechanical
aspect of
breathing.

29. LUNGS

30. Mechanics of breathingMechanics of breathing