Respiratory System

Hello Health Bloggers!

We have looked at the cardiovascular system and cardiovascular health recently.  Today we are going to go on to the respiratory system and respiratory health.

First I would like you to research the respiratory system and it's pathway.  Find out the pathway that air takes as it travels through the body, including but not limited to the following terms:
nose
pharynx
epiglottis
larnyx
trachea
lungs
bronchi
alveoli
1. Describe this pathway, including definitions of the previous terms.
2.  The nose does three things to air as it passes through it, please tell me what those three things are.
3.  The respiratory system moves oxygen from the outside environment into the body and removes carbon dioxide and water from inside the body.  Why does the body need oxygen, what purpose does it serve for the body?
4.  Why does air rush into your body when you breathe in?   In other words, how does the diaphram help you breathe?

5.  In the US, how many people die each year from smoking related illnesses?  (Please include in your answer where you get your information)
6.  On the average, how many more years do non- smokers live than smokers?

7.  List as many smoking related or respiratory diseases that you can think of or find.

Happy Blogging, please email me your answers..........
Margot

Cardiovascular Health

What behaviors can help mantain cardiovascular health?  What is cardiovascular health? 
There are a few conditions that occur from unhealthy habits.  Those are artherosclerosis and  hypertension, which can lead to a heart attack or stroke.  Look up these terms so that you are familiar with these conditions, as well as what health behaviors can lead to them.

Today you have a lab called "Blocking the Flow".  I would like you to use this activity to find out how fatty deposits affect the flow of blood through an artery.

Procedure:
1.  Put a funnel in the mouth of a jar.  The funnel will represent an artery.
2. To model blood flowing through the artery, slowly pour 100 ml of water into the funnel.  Have your partner time how many seconds it takes for all the water to flow through the funnel.  Discard the water
3.  Use a plastic knife to spread a small amount of peanut butter along the bottom of the funnel's neck.  Then, with a toothpick, carve out a hole in the peanut butter or modeling clay so that the funnel is partly clogged, but not completely.
4.  Repeat steps 1 and 2

If the funnels were arteries, which one would do a better job of supplying blood to tissues?  Explain.


Modeling increase in Blood Pressure
1.  Blow gently through a regular drinking straw.  Hold one hand a few centimeters below the end of the straw to feel the pressure of the air.
2.  Repeat this with the thinner straw, blowing with the same amount  of pressure. 

Compare the pressre felt through the two straws.  What did you discover?  How does this relate to high blood pressure?

For next class:
Consider this:  What does this have to do with your life?  Do you know anyone with heart disease?  Does anyone in your family have heart disease or have died from heart disease?  Does heart disease only affect older people?
Do a little research at home, asking family members about heart disease in your family.  Check out the statistics on heart disease and ages affected.  Let me know what you discover. 


Find out about the following people and what they discovered or did for the advanecment of cardiovascular health knowledge in the 21st century:
Helen Taussig
Karl Landsteiner
Charles Drew
Christiaan Barnard
Robert Jarvik and William DeVries

Happy Investigating!
Margot

Homeostasis

Hello Health Students!
I hope you are all having a great day!  This time of year, many people feel a lot of stress.  How do you handle stress?  Today we are going to talk about how your body keeps itself in balance.

The process by which the body's internal environment is kept stable in spite of changes in the external environment is called homeostasis.  An example of your body maintaining it's internal environment is that, no matter what the outside air temperature is, your body maintains it's internal temperature as close to 37 degrees Celsius, as long as you are healthy. ( If you are sick, your body may not be able to maintain this temperature, until you become well again.)


1.  Can you think of other ways your body maintains homeostasis?  List ways that you can think of, then do a bit of research and see if you can find more.  List any other ways that you find during your research.

Stress can disturb homeostasis and cause changes in the body. Think about a time when you were stressed.  2. What changes do you notice happen to you when you are feeling stressed?

3.  Look up these terms and tell me how they are involved in dealing with stress.
          adrenaline
          fight or flight
4.  Interpreting Data

A scientist fed a strong sugar solution to an animal.  The scientist then checked the concentration of sugar in the animal's blood during the next three hours.  The table below shows the results of the experiment.
Explain how the data show homeostasis at work.  ( Hint: Think about what happened to the blood-sugar level during the first hour and then during the next two hours)



Time after eating sugar                 Sugar concentration ( milligrams/100 millileters)
( minutes)
____________________________________________________________________

                 0                                               75
                30                                             125
                60                                             110
                90                                               90
              120                                               75
              150                                               75
              180                                               75

         

5.  What are three helpful ways of dealing with stress?  How do you usually deal with stress?

6.  The three components of wellness are physical health, mental health and social health.  Please describe what each of these are.


brainpop-homeostasis    go to this link of you have time to watch the brainpop on Homeostasis.

 Please email me your answers to the questions.  I will send your last assignment along with feedback tomorrow to school with Jeremy.

Happy Stressfree  Day...:)

Margot