1. Circulatory and Respiratory Systems
Objectives:
Describe the structure and function of the circulatory system and respiratory system.
Explain how the circulatory and respiratory system keeps a stable internal environment inside the human body.

2. The anatomy of the respiratory system
Key Point #1:
The respiratory system is made up of the nose, nasal cavity,or mouth,pharynx, larynx, trachea, bronchus, and alveoli.

3. Trace that Oxygen Molecule
Nasal cavity
Nose
Epiglottis
Larynx
Trachea*
Right Bronchus
Left Bronchus
Epiglottis- flap of cartilage that covers the trachea when you are swallowing.
Trachea- your “windpipe.” Also, where you see those miracle doctors cutting into with a fork or some shit when someone chokes on something.
Diaphragm- the muscle that leads to the expansion and contracting of your chest- you don’t control this normally
Diaphragm*

4. ORGAN SPOTLIGHT! Nose You breath air in through your nose
In the nasal cavity, the air you breathe in is filtered so you don’t breath in the bad stuff!

5. ORGAN SPOTLIGHT! Trachea
Air travels down your trachea to your lungs
Your trachea is also known as your “windpipe”

6. ORGAN SPOTLIGHT! Lungs
The fresh oxygen you breathe in moves through your lungs to tiny sacs called alveoli
In the alveoli, oxygen and carbon dioxide are traded (more on this soon!)

7. Review Cellular respiration Reactants: Oxygen, Glucose
Products: Carbon dioxide, water, ATP

8. Respiratory System
Key Point #2: The respiratory system exchanges the oxygen we breathe in with the carbon dioxide our cells make during cellular respiration
AND ALL OF THIS MAINTAINS HOMEOSTASIS!!!

9. Review: Diffusion Diffusion means to GO from HIGH to LOW
It requires no energy! (passive transport)

10. Respiratory System
Cells release CO2 in the blood during respiration. There is no CO2 in the alveoli so it DIFFUSES into the alveoli. You then breathe it out.
The oxygen in your alveoli DIFFUSES into the blood because there is a lot of CO2 in the blood and not a lot of oxygen.
AND ALL OF THIS MAINTAINS HOMEOSTASIS!!!

11. http://www.brainpop.com/health/bodysystems/res piratorysystem/

12. The circulatory system
How does this oxygenated blood get to your body?????????

13. The function of the circulatory system
Key Point #3:
The circulatory system transports nutrients, gasses, and wastes to where they need to go in the body.
It’s the highway

14. Blood Flow Big veins Vena Cava Aorta Capillaries Big arteries
Explain how it takes it to all your muscles, liver, stomach, EVERYWHERE b/c cells need energy and oxygen and this is what delivers it.
Materials diffuse through the walls, so the walls of the blood vessels are important, esp capillaries.
Small arteries
Capillaries
Small veins

15. The anatomy of the circulatory system
Key Point #4: The circulatory system consists of the heart, blood vessels, and blood.
Heart: pumps blood through four chambers
Blood Vessels:
Arteries: carry oxygenated blood away from heart and to the organs of the body
Veins: carry deoxygenated blood to heart and away from organs of the body
Capillaries: small, thin blood vessels where diffusion happens
Blood: fluids and cells that carry nutrients and gasses
Plasma, platelets, red blood cells and white blood cells

16. Organ spotlight The Heart
Blood enters the heart in the left and right atrium
Blood exits the heart from the left and right ventricle

17. Organ spotlight The Heart
The right side of the heart transports blood to the lungs to get OXYGEN
The left side of the heart transports
blood to the body to give OXYGEN to your organs

18. Class practice You write the following answers down using:
C=Circulatory
R=Respiratory
A=Arteries
V=Veins

19. C= circulatory R=respiratory
1. Carries nutrients to your body

20. C= circulatory R=respiratory
2. Breathes out CO2

21. C= circulatory R=respiratory
3. Made up of veins, arteries, and capillaries

22. C= circulatory R=respiratory
4. Includes your trachea, larynx, and nasal cavity

23. C= circulatory R=respiratory
5. Exchanges CO2 and Oxygen in alveoli of the lungs

24. A=arteries V=veins
6. Carries blood away from the heart

25. A=arteries V=veins
7. Carries oxygenated blood

26. A=arteries V=veins
8. Carries blood to the heart

27. A=arteries V=veins
9. Carries deoxygenated blood

28. A. Heart B. lungs C. trachea
10. Made up of four chambers

29. A. Heart B. lungs C. trachea
11. Takes air from the mouth to the lungs

30. A. Heart B. lungs C. trachea
12. Has small sacs where Oxygen is traded for carbon dioxide

31. Your Resting Heart Rate
To take your resting heart rate at the wrist, place your index and middle fingers together on the opposite wrist, about 1/2 inch on the inside of the joint, in line with the index finger. 
Feel for a pulse. 
When you find a pulse, count the number of beats you feel within a one minute period. 
You should always use your fingers to take a pulse, not your thumb, since you can sometimes feel your own pulse through your thumb.

32. What is a normal resting heart rate?
Average adult bpm
In shape bpm
Good athlete bpm
Excellent athlete <50 bpm
During exercise, your heart rate will depend on the intensity of exercise, your fitness level, and your maximum heart rate (which will depend on your age). Use this table to help determine your training heart rate level.
As you get more fit & exercise, your resting heart rate should decrease. This is due to the heart getting more efficient at pumping blood around the body, so at rest more blood can be pumped around with each beat, therefore less beats per minute are needed.

33. Michael Phelps’ resting heart rate is in the 30s!!!!!!

34. Review
Oxygen and carbon dioxide are exchanged in the lungs through the respiratory system
The circulatory system transports nutrients, gasses, and wastes to where they need to go in the body
The circulatory and respiratory system work together to maintain homeostasis in your body by keeping the right balance of gasses in your body