The document outlines classroom rules and educational objectives regarding the human respiratory and circulatory systems. It details the components and functions of these systems, including gas exchange and blood circulation, and describes the roles of various organs and structures involved. Additionally, it incorporates an activity on the health effects of cigarette smoking on these systems.

1. Class rules
1.Arrange your chairs properly
2.Keep 1-1.5-meter physical distancing
3.Keep your hands clean and sanitized
4.Wear your facemasks properly
5.Focus, Listen and Participate
6.Don’t talk until it is your turn to speak
7.Raise your hand to talk

2. Processes in Plants and Animals
(Gas Exchange and
Transport/Circulation)

3. Introduction

4. OBJECTIVES
At the end of the lesson, the learners will be able to:
1. Describe the organs in the human respiratory and
circulatory system and their roles.
2. Discuss the coordination of gas exchange and
circulation.
3. Trace the path of blood in the systemic and the
pulmonary circulation

5. THE HUMAN RESPIRATORY SYSTEM

7. THE HUMAN RESPIRATORY SYSTEM
• Mouth and nose:

8. THE HUMAN RESPIRATORY SYSTEM
• Bronchial tubes: Tubes at the bottom of your
windpipe that connect into each lung.
• • Lungs: Two organs that remove oxygen
from the air and pass it into your blood.
Some of the bones and muscles in the
respiratory system include your:
**Diaphragm: Muscle that helps your lungs pull in
air and push it out
**Ribs: Bones that surround and protect your lungs
and heart

9. When you breathe out, your blood carries
carbon dioxide and other waste out of the
body. Other components that work with the
lungs and blood vessels include:
**Alveoli: Tiny air sacs in the lungs where the
exchange of oxygen and carbon dioxide takes
place.
**Bronchioles: Small branches of the bronchial
tubes that lead to the alveoli.
**Capillaries: Blood vessels in the alveoli walls
that move oxygen and carbon dioxide.
**Pleura: Thin sacs that surround each lung
lobe and separate your lungs from the chest
wall.

10. Passage of Air in Respiratory System

11. THE HUMAN CIRCULATORY SYSTEM

12. THE HUMAN CIRCULATORY SYSTEM
• The following are the three major parts of the circulatory system, with their roles:
• 1.Heart – pumps the blood throughout the body
• 2.Blood vessel – carries the blood throughout the body
Arteries - carry oxygenated blood away from the heart to the
cells, tissues and organs of the body
Veins - carry deoxygenated blood to the heart
Capillaries - the smallest blood vessels in the body, connecting
the smallest arteries to the smallest veins - the actual site where
gases and nutrients are exchanged
• 3.Blood – carries the materials throughout the body

13. THE HEART
• The Aorta: this is the largest artery in the
human body. The main function of the aorta is
to take oxygenated blood all the way from the
left ventricle to the rest of the body.
• The Pulmonary Artery: this artery is
responsible for carrying deoxygenated blood
all the way from the right ventricle to the lungs.
• The Right Atrium: this part of the human body
is tasked with receiving deoxygenated blood
from the rest of the body.

14. THE HEART
• The Pulmonary Vein: Veins are the tubular
branching vessels that carry blood all the way
from the capillaries and take it to the heard.
The function of the pulmonary vein is to take
oxygenated blood all the way from the lungs to
the left atrium.
• The Left Ventricle: A ventricle is any of the
cavities of a bodily part or organ. The essential
function that the left ventricle carries out is
pumping oxygenated blood into the aorta.
• The Right Ventricle: The right ventricle is
tasked with pumping deoxygenated blood into
the pulmonary artery.

17. Pulmonary Circulation
• The circulation of the blood through the
heart starts when blood comes back to
the heart through two big veins called
the vena cava.
• > The blood then flows into the right
atrium.
• > Then it passes through the tricuspid (3-
cupped) valve into the right ventricle.
• > From there, it is pumped through
the pulmonary arteries to the lungs. In
the lungs, it picks up oxygen and drops off
carbon dioxide.

18. Systemic Circulation.
> Then it comes back to the heart through the
4 pulmonary veins and flows into the left
atrium.
> Then it goes through the bicuspid (2-cupped)
valve (also called the mitral valve) into the left
ventricle.
> The left ventricle, the most muscular and
powerful chamber in the heart, pumps the blood
through the aorta, the largest artery in the body.
From here, the blood flows to the whole body,
bringing oxygen to the tissues that need it. This is
called the Systemic Circulation.

19. ELABORATE
Activity: Think-Pair-Share
Cigarette Smoking Is Dangerous to Your Health
1. Look for pictures of a smoker’s body on the internet. Take note of the illnesses that might
develop due to cigarette smoking. (http://www.clarkisit.com/smokingkills)
2. With your pair, brainstorm ideas about the effects of cigarette smoking on a person’s
respiratory and circulatory systems using the meta plan strategy.
3. After discussing the ideas within the group, write and organize all the responses on a bond
paper to categorize which answer falls under the respiratory and circulatory systems.
Refer to the example given below.

21. EVALUATION

22. Thank You