The document discusses the circulatory system, including its major components and functions. It defines key terms like cardiovascular system, pulmonary system, arteries, veins, and capillaries. It describes how the heart pumps blood through two circuits - the pulmonary circulation to the lungs and systemic circulation to the body. Blood carries oxygen, nutrients, hormones, and waste products as it circulates. The document outlines the pathways blood takes and defines the roles of blood components like red blood cells, white blood cells, and platelets.

1. CIRCULATORY SYSTEM
Johnel Villanueva Esponilla

2. Let’s Warm Up!!!

3. WHAT WE WILL LEARN?
1. Identify parts of the circulatory system.
2. Describe the function of the parts of the
circulatory system.
3. Explain ways to take care of the circulatory
system.

4. Let’s Warm Up!!!
Explain three ways how the circulatory
system is like a transportation system.
Trucks, Buses, and Cars!
This should be one paragraph or more!

5. VOCABULARY
Cardiovascular system
Pulmonary system
Systemic system
Arteries
Capillaries

6. VOCABULARY
Cardiovascular system
organs and tissues that
transport essential materials
to body cells

7. VOCABULARY
Pulmonary system
flow of blood from the heart to
the lungs and back to the
heart

8. VOCABULARY
Systemic system
flow of blood to the body
tissues except the lungs

9. VOCABULARY
Arteries
vessels that carry away from
the heart to other parts of the
body

10. VOCABULARY
Veins
vessels that carry blood from
the body back to the heart

11. VOCABULARY
Capillaries
tiny tubes that carry blood
from the arteries to the cells,
and back to the veins

12. Introduction!!!
Humans and other vertebrates have a
closed circulatory system!!!

13. Circulatory System
The Truth About
Your Heart

14. Heart
Enclosed in a
protective sac
called the
pericardium

15. Heart
In the walls of the
heart, two layers
form a sandwich
around a thick
layer of muscle
called the
myocardium.

16. Heart
The heart
contracts about
72 times per
minute

17. Heart
The right and
left sides of the
heart are
separated by a
septum, or
wall.

18. Heart
On each side of the septum
are two chambers.
Atrium – the
upper chamber
Ventricle – the
lower chamber

19. Blood

20. Blood
50% water
45% RBC
4% plasma with
substances
1% WBC and Platelets

21. Erythrocytes
Transporter
Oxygen
Carbon Dioxide

22. Erythrocytes
RBC
Lack a nucleus
Contain
hemoglobin
Disk-shaped

23. Erythrocytes
RBC are produced in a
red bone marrow
ribs
humerus
femur
sternum

24. Leukocytes
Less abundant

25. Leukocytes
Large cells
Some live for
months
All contain nuclei

26. Leukocytes
WBC fight infection
Attack foreign
substances

27. Platelets
Clotting blood
Produced in bone marrow
Short life span

28. Platelets
Break in capillary wall
Blood vessels injured
Clumping of platelets
Platelets clump at the
site and release
thromboplastin.
Thromboplastin converts
prothrombin into
thrombin.
Clot forms
Thrombin converts
fibrinogen into fibrin,
which causes a clot. The
clot prevents further loss
of blood.

29. Pathway of Blood
Deoxygenated blood
passes from the
right atrium into the
right ventricle and
then goes to the
lungs.

30. Pathway of Blood
From the lungs,
blood moves back
toward the heart into
the aorta to go to the
rest of the body.

31. Blood Types
There are four blood
types. A, B, AB, and
O.

32. Diagram – Parts of the Heart

33. Types of Circulation

34. What’s In Your Blood?

35. Types of Blood Vessels

36. What is the
importance of
circulatory system?