Science
Cardiac arrest?
Heart attack?
Stroke?
Healthy or Unhealthy
a
b
c
Healthy or Unhealthy
a
b
c
Healthy or Unhealthy
a
b
c
According to the Centers for
Disease Control and Prevention
• Leading risk factors for heart disease and stroke
are - high blood pressure,
- cholesterol,
- diabetes,
- smoking and secondhand smoke exposure,
- obesity, unhealthy diet, and physical inactivity.
Measure the heartbeat before and
after physical activities (by pair)
Count the heartbeat of your partner in
1 minute
1. What happens to the heart rate
during physical activity?
2. How does regular exercise
contribute to maintaining a healthy
circulatory system?
Why does blood need to
circulate?
THE CIRCULATORY SYSTEM
OBJECTIVES
01
02
03
Recognize the
key parts of
the circulatory
system and its
functions
Measure the
heartbeat before
and after
performing an
activity
Create a flow chart
(or any graphic
organizer) that
summarizes the
flow of blood in the
heart
WHAT IS CIRCULATORY
SYSTEM?
1. What is circulatory system?
2. The three major parts of the circulatory system
3. How does the blood flow in the heart and
throughout the body?
4. Types of circulation?
5. What are the different ailments of circulatory
system?
WHAT IS CIRCULATORY
SYSTEM?
is the life support structure that nourishes
your cells with nutrients from the food you
eat and oxygen from the air you breathe.
1. What is circulatory system?
2. The three major parts of the circulatory system
3. How does the blood flow in the heart and
throughout the body
4. Types of circulation?
5. What are the different ailments of circulatory
system?
Three (3) major
parts of the
circulatory
system
2. The three major parts of the circulatory system
Animals have either an open
or a closed circulatory system
All of them share 3 main components
- A circulating fluid
- A muscular pump
- Interconnecting tubes
2. The three major parts of the circulatory system
1. Circulating fluid
2. Muscular
pump
3. Interconnecting
tubes
Heart
Blood vessels
Blood
HEART
BLOOD VESSELS
BLOOD
Blood shared by ancient and
modern cultures
Blue blood
Bad blood
Boiling blood
Blood curdling
The composition of human blood
Human Blood
1. Plasma
2. Cellular components
Cellular components
1. ERYTHROCYTES
●
●
BICONCAVE SHAPE
●
Also known as red blood
cells(RBCs)
These
are
the
cells
responsible for transporting
oxygen
contain a protein called
hemoglobintransports
oxygen
Cellular components
2. Leukocytes
●
●
Also known as white blood
cells(RBCs)
Fights infection
Cellular components
3. Thrombocytes
●
●
Thrombus – “cloth”
Blood clothing (platelets)
Blood vessels
Site of gas
exchange
Carry blood
away from the
heart
Carry blood
toward the heart
Page 15
Three main parts
of the heart
Chambers
Vessels
Valve
Three main parts
of the heart
Chambers
Three main parts
of the heart
Vessels
Three main parts
of the heart
Valve
Blood flow pathway through the heart
1. Inferior and superior vena cava
2. Right atrium –tricuspid valve
3. Right ventricle- pulmonary
valve
4. Pulmonary artery
5. Lungs
6. Pulmonary vein
7. Left atrium- mitral valve
8. Left ventricle- Aortic valve
9. Aorta
1. What is circulatory system?
2. The three major parts of the circulatory system
3. How does the blood flow in the heart and
throughout the body?
4. Types of circulation?
5. What are the different ailments of circulatory
system?
3. Types of circulation
Pulmonary
Coronary
Systemic
3. Types of circulation
1. Pulmonary
Movement of blood
from the heart to the
lungs, and back to
the heart
3. Types of circulation
2. Coronary
Movement of blood
through the tissues
of the heart
3. Types of circulation
3. Systemic
Movement of blood
from the heart to the
rest of the body,
excluding the lungs