The Human Respiratory System & Covid- 19 relates and effect on Lungs

1. The Respiratory System
Presented by Amir Sami
Effect of Covid-19 on

2. Breathing – Moving air in and out of the
Lungs.
Respiration – Chemical reaction that
releases energy.
Breathing and Respiration are NOT
the same thing!

3.  COVID-19 is a respiratory disease, one
that especially reaches into your
respiratory tract, which includes your
lungs.
What Does COVID-19 Do to Your Lungs?
Nucleocapsid protein (N) and RNA
Hemagglutinin esterase (He)
Membrane protein (M)

4. COVID-19 can cause a range
of breathing problems, from mild to
critical. Older adults and people
who have other health conditions
like heart disease, cancer,
and diabetes may have more
serious symptoms.

5. CORONAVIRUS AND YOUR LUNGS
SARS-CoV-2, the virus that causes COVID-
19, is part of the coronavirus family.
When the virus gets in your body, it comes
into contact with the mucous membranes
that line your nose, mouth, and eyes. The
virus enters a healthy cell and uses the cell
to make new virus parts. It multiplies, and
the new viruses infect nearby cells.

7.  Think of your respiratory tract as an upside-
down tree. The trunk is your trachea, or
windpipe. It splits into smaller and smaller
branches in your lungs. At the end of each
branch are tiny air sacs called alveoli. This
is where oxygen goes into your blood and
carbon dioxide comes out.

8.  Fever: 99%
 Fatigue: 70%
 A dry cough: 59%
 Loss of appetite: 40%
 Body aches: 35%
 Shortness of breath: 31%
 Mucus or phlegm: 27%
 Trouble breathing
 Constant pain or pressure in your chest
 Bluish lips or face
 Sudden confusion
Common Symptoms
Emergency Symptoms

10.  Nose
 Mouth
 Nasal cavity
 Pharynx
 Epiglottis
 Larynx
 Trachea
Organs Of Respiratory System
oBronchus (bronchi)
o Bronchioles
o Alveoli
o Pleura
o Diaphragm
Lungs

12.  Brings air (O2) into the body.
 Carbon Dioxide leaves the body through the mouth and
nose
 Nasal hairs in nostrils filter and trap dust.
 Air is not filtered as much when it enters in
through your mouth.
Mouth & Nose

13.  Warms & moistens air.
 Glands that produce sticky mucus line the nasal cavity
– traps dust, pollen, and other materials that were not
trapped by nasal hairs – cilia sweep mucus
and trapped material to the back of the throat where it can
be swallowed
Nasal cavity
Nasal Pasage

14.  Tube-like passageway used by food,
liquid, and air
 At the lower end of the pharynx is a flap
of tissue called the epiglottis
– covers the trachea during swallowing so
that food does not enter the lungs
Pharynx (Throat)

16.  “Voice box”
 The airway to which two pairs of
horizontal folds of tissue, called vocal
cords, are attached
Larynx

17.  Air-conducting tube
 Connects the larynx with the bronchi
 Lined with mucous membranes and cilia
 Contains strong cartilage rings which
hold the trachea open. Without these
rings your trachea might close off and air
would not be able to get to and from your
lungs.
Trachea (Wind Pipe)

18.  Two short tubes that branch off the lower
end of the trachea
 Carry air into the lungs.
 Singular - bronchus
Bronchi

20.  bronchi tubes split up, like tree
branches, and get smaller and smaller
inside your lungs.
 The tiny branches of air tubes in the
lungs are bronchioles
 Connect bronchi to alveoli
Bronchioles

21.  Tiny, thin-walled, grapelike clusters at the end
of each bronchiole
 Surrounded by capillaries
 Where carbon dioxide and oxygen exchange
take place
 Singular - alveolus
Alveoli

22.  Membrane lining the lungs and chest cavity.
Pleura

23.  Muscle wall between the chest and the
abdomen that the body uses for
breathing
 Lungs expand and contract in response to
changes in pressure inside the chest cavity.
 The diaphragm flattens to cause the chest
to expand and air is pulled into the lungs.
 When the diaphragm relaxes, the chest
collapses and the air in the lungs is forced
out.
Diagphragm

25. Amir
Sami