Conditions
Affecting the
Respiratory
System
Conditions Affecting the
Respiratory System
 Asthma
 Bronchitis
 Pneumonia
 Common cold
 Lung cancer
 Emphysema
 Rhinitis
 Tonsillitis
 Tuberculosis
 Cystic fibrosis (CF)
 Coronavirus Disease
(COVID-19)
ASTHMA
Asthma is a
chronic
respiratory
disorder
Constriction of
the bronchial
airways,
resulting to
difficulty in
breathing.
ASTHMA
CAUSES
Generally it is thought that
asthma is somewhat inherited
TRIGGERS – include pollen,
dust, smoke, pets
SYMPTOMS
Chest tightness
Wheezing
Night-time cough
Restricted breathing
ASTHMA – Prevention/treatment
 Prevention:
 Avoid asthma triggers
 Get vaccinated for influenza and
Pneumonia
 Treatment
IMMEDIATE
 Nebulizer
 Inhalers
LONG-TERM
 some patients use a corticosteroid
treatment to control spasms in the
bronchioles
 Patients with severe asthma may
even take stronger medications such
as Prednisone
BRONCHITIS
 An infection
of the bronchi
2 types:
-acute
-chronic
1. Acute – caused by
a bacteria
- treated with
antibiotics
2. Chronic – long
term
- usually caused by
an irritant – ie smoking
- cilia become
damaged and can’t
clear debris
BRONCHITIS
CAUSES
Viral or
bacterial in
nature
Associate
d with
BRONCHITIS
BRONCHITIS
SYMPTOMS:
 Cough with sputum
 Wheezing
 Tight chest
 Shortness of breath
TREATMENT
 Relieved by bronchodilator
PREVENTION
 Do not smoke/Quit smoking
PNEUMONIA
Inflammation
of the lungs
due to infection
The alveoli
become
inflamed and
fill with liquid
X-RAY OF PNEUMONIA
Patient has
pneumonia in the
right lung
(note:white mass
= fluid)
Lungs should
appear black on
an x-ray
PNEUMONIA
CAUSES

Bacteria

Fungi

Viruses (including SARS-CoV, MERs-CoV, and recently SARS-CoV-
2)
SYMPTOMS

Chest pain

Cough with phlegm

Fatigue

Chills and Fever

Shortness of breath

Nausea

Vomiting
PNEUMONIA
Prevention:
Get vaccinated
Good hygiene
Do not smoke
Cure:
If bacteria, Antibiotics
If viral, Rest with lots of fluid intake
COMMON COLD
Viral infection
affecting the nose and
throat
SYMPTOMS
Characterize by cough,
runny nose, watery
eyes, stuffy nose,
sneezing, headache and
sore throat
COMMON COLD
CAUSES
More than 200 types
of cold viruses
TREATMENT
Rest, and plenty of
fluids- NOT antibiotics
No cure or vaccine
The best way to reduce the
chances of getting a cold…
WASH
HANDS!
LUNG CANCER
Abnormal cells
multiply and form
malignant tumors
called carcinomas
Carcinomas
impede healthy
lung tissue –
making breathing
difficult
Normal Lung
vs.
Cancerous Lung
LUNG CANCER
SYMPTOMS
Cough that does not go away
Coughing up blood
Shortness of breath
Chest pain
Headache
Hoarseness
CAUSES
Cigarette Smoking
Secondhand smoke
Gene changes
LUNG CANCER - causes
 Carcinogens (cancer-
causing agents) in
cigarette smoke are
the leading cause of
lung cancer
Lung Cancer—treatment
Prevention:
Do not smoke/Quit
smoking
Avoid secondhand
smoke
Treatment:
Surgery
Chemotherapy
Radiotherapy
EMPHYSEMA
A chronic
respiratory
disorder
The alveolar walls
break down & lose
their elasticity
Surface area is
greatly reduced –
breathing is
difficult
EMPHYSEMA
CAUSES
usually from many years
of smoking
Effects are permanent and
incurable
Older individuals are more
susceptible to this disease
SYMPTOMS
Frequent coughing and wheezing
Shortness of breath
EMPHYSEMA - treatment
Low-flow oxygen
tank – delivers a
higher oxygen
concentration
Lung volume
reduction surgery
(LVR) – removal of
damaged tissue to
let healthy tissue
work more
efficiently
EMPHYSEMA - prevention
Frequent
coughing and
wheezing
Shortness of
breath
TONSILLITIS
 Infection
(usually viral) of
the tonsils
If a child has
many infections,
the tonsils are
surgically
removed
TONSILLITIS
It is believed the
tonsils help prevent
bacteria and other
pathogens from
entering the body –
therefore a removal
may increase the
number of illnesses
later in life
CYSTIC FIBROSIS
Genetic condition
An abnormal gene
causes the cells
lining the alveoli
to secrete a thick,
sticky mucus
Mucus attracts
bacteria and
numerous
infections result
CYSTIC FIBROSIS - treatment
There is no cure –
life expectancy is
usually low – early
30s
Medicines are used
to thin the mucus
Antibiotics are
given for
infections
CYSTIC FIBROSIS
New treatments
include gene
therapy
An inhaler is used
to spray healthy
versions of the
abnormal gene –
the healthy genes
can then make
proper mucus
RHINITIS
o Inflammation of
the mucous
lining of the nose
SYMPTOMS
o Sneezing
o Runny nose
o Watery eye
o Itchiness
RHINITIS
CAUSES
oViral (acute
rhinitis)
oAllergic reaction
to tree or grass
pollen, dust,
animal dander
(allergic rhinitis)
TREATMENT
oAvoid allergens
oA non-sedative
antihistamine
and
decongestant
may be taken
RHINITIS
Tuberculosis
o Infection
characterized by
the inflamation
of nodules in the
tissues
o May occur in
other body parts
such as larynx,
brain, joints etc.
SYMPTOMS
oPersistent
coughing
oDeep pain on the
chest when
breathing
oCoughing out blood
oWeakness, fever
Tuberculosis
CAUSES
oAirborne
diseases
oMycobacterium
tuberculosis
Tuberculosis
TREATMENT
oCorrect combination
of antibiotics
oPrevented by BCG
vaccine, a live
bacterial vaccine
usually given to
children
Tuberculosis
CAUSES
o
Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2)
SYMPTOMS
Most common symptoms are:

Fever

Dry cough

Tiredness
Less common symptoms are:

Aches and pains

Sore throat

Diarrhea

Conjunctivitis (pink eye)

Headache

Loss of taste and smell

Rashes
Coronavirus Disease (COVID-19)
Serious symptoms:
Difficulty in breathing
Chest pain
Loss of speech and movement
Prevention:
Wash your hands regularly
Maintain physical distancing
Avoid touching your face
Cover your mouth when
coughing and sneezing
Avoid smoking
Wear face mask
STAY AT HOME
Coronavirus Disease (COVID-19)
Conditions
Affecting the
Circulatory
System
Conditions Affecting the
Circulatory System
 Atherosclerosis
 High blood
pressure
 Stroke
 Heart attack
 Hemophilia
 Leukemia
 Anemia
Atherosclerosis
 plaque builds up
within the blood vessel
wall
Causes:
Smoking
Excessive alcohol intake
Diabetes
High Blood Pressure
High Cholesterol
Overweight
Atherosclerosis
Prevention:
Reduce the amount of
stress in your
everyday life
Change diet to reduce
the amount of
sodium, fats and
cholesterol.
Regular Medical
checkups
Treatment:
Medication
Exercise
regularly
Healthy diet
o Also known as
hypertension
o “silent killer”
o The force or pressure
developed by the
heart, which acts to
pump blood through
the circulatory
system.
High Blood Pressure
Blood Pressure
Two Distinct pressures
that are measured!!
Systolic: A measure of the
maximum force or
pressure developed in
the arteries when the
heart contracts
Diastolic: A measure of
the lowest pressure,
which occur in the
arteries during cardiac
relaxation.
Blood Pressure
Sphygmomanometer:
An instrument used to
measure blood pressure.
Stethoscope: An
instrument used to listen
to the sounds of the
heart, or listen to the
flow of blood through the
vessels when measuring
the blood pressure.
HYPERTENSION
CAUSES

Obesity

Diabetes

High salt intake

Lack of fruits and vegetable in the
diet

Family history
TREATMENT

Medication

Change your lifestyle
“Brain Attack”
Happens when a
cluster of blood
cells blocks blood
vessels in the
brain.
STROKE
STROKE
SYMPTOMS
Sudden numbness
Weakness in the
arm, leg and face
especially if it occurs
on only one side of
the body
Slurred speech
Vision changes
STROKE
CAUSES
Smoking
Diabetes
Hypertension
High level of cholesterol
Family history
Excessive alcohol intake
Prevention:
Don’t Smoke
Drink in moderation (21)
Get cholesterol checked
Exercise 30 minutes daily
Consume a low fat diet
Treatment:
Medication
Rehabilitation
STROKE
“Myocardial Infarction or MI”
Damage or death of the heart
muscle due to blockage of
coronary artery from the blood
clot
HEART ATTACK
HEART ATTACK
CAUSES
Diabetes
Smoking
Family history
Hypertension
High cholesterol
TREATMENT
Medication/surgery
Change your lifestyle
Blood does not clot
properly
Prevention:
No prevention, you are
born a hemophiliac
Treatment:
Transfusions of blood
clotting factors.
HEMOPHILIA
Abnormal white
blood cells
In time they
may crowd out
normal white
blood cells,
red blood
cells, and
platelets.
LEUKEMIA
Lack of red blood cells
or cells that do not carry
enough oxygen;
oMay cause weakness
and low energy levels.
Prevention:
Eat foods that are rich
in Iron
Treatment: Rest
ANEMIA
Your blood is unable
to circulate properly.
There is no
prevention for sickle-
cell anemia since you
are born with it.
Treatments:
Blood Transfusions
Medication
Normal Blood Cell
Sickle Cell
SICKLE CELL ANEMIA

SCIENCE 9 POWERPOINT PRESENTATION IN SCIENCE