1. The Circulatory and Respiratory Systems
By Sanaa Ahmed

2. Summary of Lesson

3. Main Idea Respiratory System Circulatory System
Brings oxygen into the body and removes carbon dioxide.
Circulatory System
Carries oxygen to the cells and carries away carbon dioxide.

4. Respiratory System
Includes the lungs and the airways that lead to the mouth and nose
You could not live for a very long time without breathing in and breathing out
Every breath you take your body takes in oxygen and lets out carbon-dioxide

5. How does it Work? Air moves into a sturdy tube called the trachea
Trachea divides into two main tubes called bronchi
In the lungs the bronchi separates into smaller and smaller tubes that lead into sacs called alveoli
When air is inhaled, you take oxygen into your nose or mouth.
The air moves into a sturdy tube called the trachea
The trachea divides into two main tubes called bronchi.
In the lungs the bronchi separates into smaller and smaller tubes called alveoli.
The lungs contain millions of alveoli. Each of these tiny structures border a capillary, which is a thin tube that contains blood.
Oxygen diffuses from the alveoli into the blood. At the same time, carbon dioxide diffuses from the blood to the alveoli.
The lungs contain millions of alveoli; each of these structures border a capillary. Oxygen diffuses from the alveoli into the blood. At the same time, carbon dioxide diffuses from the blood to the alveoli. Carbon dioxide is a waste product from cells. when you exhale, your body releases carbon dioxide into the air.

6. How does it Work? (continued..)
Lungs contain millions of alveoli
Alveoli border a capillary, which is a thin tube that contains blood
Oxygen diffuses from the alveoli into the blood
Carbon dioxide diffuses from the blood to the alveoli
Carbon dioxide is a waste product from cells. When you exhale, your body releases carbon dioxide into the air
When air is inhaled, you take oxygen into your nose or mouth.
The air moves into a sturdy tube called the trachea
The trachea divides into two main tubes called bronchi.
In the lungs the bronchi separates into smaller and smaller tubes called alveoli.
The lungs contain millions of alveoli. Each of these tiny structures border a capillary, which is a thin tube that contains blood.
Oxygen diffuses from the alveoli into the blood. At the same time, carbon dioxide diffuses from the blood to the alveoli.
Carbon dioxide is a waste product from cells. when you exhale, your body releases carbon dioxide into the air.

7. Other Respiratory Systems
Fish
Water goes in through mouth and oxygen is absorbed
Water goes out through fishes gills
Worms
Don’t have lungs
Breathe by diffusing air through skin
Oxygen passes in while carbon dioxide passes out
Birds
Have lungs and air sacs
Requires two respiration cycles
When air is inhaled, you take oxygen into your nose or mouth.
The air moves into a sturdy tube called the trachea
The trachea divides into two main tubes called bronchi.
In the lungs the bronchi separates into smaller and smaller tubes called alveoli.
The lungs contain millions of alveoli. Each of these tiny structures border a capillary, which is a thin tube that contains blood.
Oxygen diffuses from the alveoli into the blood. At the same time, carbon dioxide diffuses from the blood to the alveoli.
Carbon dioxide is a waste product from cells. when you exhale, your body releases carbon dioxide into the air.

8. The Circulatory System
Consists of blood vessels that connect the organs and major tissues throughout the body
Center of the Circulatory System is a muscular organ called the heart
The heart pumps blood to the network of blood vessels in your body

9. How does it work?
Blood picks up oxygen in the lungs, and travels to the heart, then through the arteries to the other parts of the body.
Artery is a blood vessel that carries blood away from the heart. Arteries are red.

10. How does it work? (con.)
Arteries branch into the thinner and thinner blood vessels, and eventually branch into thin vessels called capillaries
Capillaries lead into veins. A vein is a blood vessel that carries blood back to the heart. Veins are blue.

11. The Heart
The heart pumps blood through the network of blood vessels; the veins and the arteries
The human heart is divided into four chambers
Two upper chambers are the atria and the two lower chambers are the ventricles

12. Other Circulatory Systems
Frog
Heart has three chambers: one ventricle and two atria
Deoxygenated blood in right atrium enters the ventricle
Oxygenated blood in the left atrium enters the ventricle
Oxygenated and deoxygenated blood mix in the ventricle
Ventricle is designed to reduce this mixing somewhat

13. Other Circulatory Systems
Frog
Heart has three chambers: one ventricle and two atria
Deoxygenated blood in right atrium enters the ventricle
Oxygenated blood in the left atrium enters the ventricle
Oxygenated and deoxygenated blood mix in the ventricle
Ventricle is designed to reduce this mixing somewhat

14. Other Circulatory Systems (con.)
Fish
Have a two-chambered heart that has only a single atrium and a single ventricle
Gill Circulation - The atrium collects blood that has returned from the body, while the ventricle pumps the blood to the gills and the blood is re-oxygenated
Systemic Circulation - The blood then continues through the rest of the body before arriving back at the atrium

15. Beyond the Book

16. Respiratory System Diseases
Bronchitis
An inflammation of the lining of bronchial tubes, which carry air to and from lungs
Symptoms
Cough, which may produce clear, yellow or green mucus
Wheezing, low fever, chest tightness or pain
Shortness of breath (in severe cases)

17. Respiratory System Diseases (con.)
Treatment
Most cases of acute bronchitis resolve without medical treatment in two weeks
In some circumstances, your doctor may prescribe medications like antibiotics or cough medicine.

18. Circulatory System Diseases
Hypertension(High Blood Pressure)
Common condition in which the force of the blood against artery walls is high enough that it may eventually cause health problems, such as heart disease
Blood pressure is determined by the amount of blood heart pumps and the amount of resistance to blood flow in arteries
The more blood heart pumps and the narrower arteries, the higher your blood pressure

19. Circulatory System Diseases (con.)
Symptoms
Severe headache
Fatigue or confusion
Chest pain
Difficulty breathing
Irregular heartbeat
Treatment
Treating high blood pressure can take a multi-pronged approach including diet changes, medication, and exercise.

20. Pop Quiz What is an artery?
A blood vessel that carries blood towards the Heart
A blood vessel that carries blood away from the Heart
A blood vessel that carries cells toward the heart
A Blood vessel that carries cells away from the Heart
What is an example of a Circulatory System disease?
Hypertension
Severe headache
Bronchitis
Vision problems