1. What is responsible for pumping blood through your body?
- The Blood is responsible for pumping blood through your body.
2. The heart is a type of:
- The heart is a type of muscle.
3. What makes up your body's circulatory system?
- The heart, blood vessels, and blood make up your circulatory system.
4. What does blood bring to cells?
- Blood brings oxygen and nutrients to cells.
5. Where does blood become oxygenated?
- Blood becomes oxygenated in the lungs.
6. What are the three types of blood circulation in your body?
- The three types of blood circulation in your body are coronary, pulmonary, and systemic.
7. What is coronary circulation?
- Coronary circulation is the circulation with blood within your heart.
8. Systemic circulation requires help from :
- Systemic circulation requires help from arteries and veins.
9. What is the superior vena cava?
- The superior vena cava is a blood vessel.
10. What are arteries?
- Arteries are blood vessels that move blood away from the heart.
Friday, April 23, 2010
How lungs work:
How your lungs Work:
When you breathe in your diaphragm contracts and your ribcage expands. To enter your lungs air needs to go through the trachea. A Human has only two lungs. Bronchial tubes are passage ways inside your lungs. The diaphragm is the muscle that allows you to breathe in and out. Oxygen cannot be stored in your body. When a human breathes out their body gets rid of carbon dioxide. Capillaries are tiny blood vessels. Alevoli are small sacs in your lung which store air. Emphysema can be caused by smoking.
Read More...
Your lungs are located within your chest cavity inside the rib cage. They are made of spongy, elastic tissue that stretches and constricts as you breathe. The airways that bring air into the lungs (the trachea and bronchi) are made of smooth muscle and cartilage, allowing the airways to constrict and expand. The lungs and airways bring in fresh, oxygen-enriched air and get rid of waste carbon dioxide made by your cells. They also help in regulating the concentration of hydrogen ion (pH) in your blood.
When you inhale, the diaphragm and intercostal muscles (those are the muscles between your ribs) contract and expand the chest cavity. This expansion lowers the pressure in the chest cavity below the outside air pressure. Air then flows in through the airways (from high pressure to low pressure) and inflates the lungs. When you exhale, the diaphragm and intercostal muscles relax and the chest cavity gets smaller. The decrease in volume of the cavity increases the pressure in the chest cavity above the outside air pressure. Air from the lungs (high pressure) then flows out of the airways to the outside air (low pressure). The cycle then repeats with each breath.
When you breathe in your diaphragm contracts and your ribcage expands. To enter your lungs air needs to go through the trachea. A Human has only two lungs. Bronchial tubes are passage ways inside your lungs. The diaphragm is the muscle that allows you to breathe in and out. Oxygen cannot be stored in your body. When a human breathes out their body gets rid of carbon dioxide. Capillaries are tiny blood vessels. Alevoli are small sacs in your lung which store air. Emphysema can be caused by smoking.
Read More...
Your lungs are located within your chest cavity inside the rib cage. They are made of spongy, elastic tissue that stretches and constricts as you breathe. The airways that bring air into the lungs (the trachea and bronchi) are made of smooth muscle and cartilage, allowing the airways to constrict and expand. The lungs and airways bring in fresh, oxygen-enriched air and get rid of waste carbon dioxide made by your cells. They also help in regulating the concentration of hydrogen ion (pH) in your blood.
When you inhale, the diaphragm and intercostal muscles (those are the muscles between your ribs) contract and expand the chest cavity. This expansion lowers the pressure in the chest cavity below the outside air pressure. Air then flows in through the airways (from high pressure to low pressure) and inflates the lungs. When you exhale, the diaphragm and intercostal muscles relax and the chest cavity gets smaller. The decrease in volume of the cavity increases the pressure in the chest cavity above the outside air pressure. Air from the lungs (high pressure) then flows out of the airways to the outside air (low pressure). The cycle then repeats with each breath.
Monday, April 19, 2010
Respiratory System Worksheet
2. Pharynx - Larynx - Trachea - Bronchi - Bronchioles - Alveoli.
3. Esophagus.
4. The hairs in your nasal cavity that push the dirt into the nose. These hairs are called "Cilia".
5.
a) Bronchioles (c)
b) Palate (d)
c) Trachea (b)
d) Alveoli (a)
e) Epiglottis (i)
f) Pharynx (g)
g) Expiration (h)
h) Diahragm (f)
i) Pleura (e)
j) Tidal Volume (j)
6.
B. The muscles between the ribs contract to move the ribs cranially and laterally.
D. The diaphragm contracts and flattens.
E. The lungs expand to fill up the space created.
A. The air pressure in the air tight pleural cavities decreases.
C. Air is drawn down the trachea into the lungs.
7.
a) True
b) False
c) True
d) True
e) True
f) False
g) True
3. Esophagus.
4. The hairs in your nasal cavity that push the dirt into the nose. These hairs are called "Cilia".
5.
a) Bronchioles (c)
b) Palate (d)
c) Trachea (b)
d) Alveoli (a)
e) Epiglottis (i)
f) Pharynx (g)
g) Expiration (h)
h) Diahragm (f)
i) Pleura (e)
j) Tidal Volume (j)
6.
B. The muscles between the ribs contract to move the ribs cranially and laterally.
D. The diaphragm contracts and flattens.
E. The lungs expand to fill up the space created.
A. The air pressure in the air tight pleural cavities decreases.
C. Air is drawn down the trachea into the lungs.
7.
a) True
b) False
c) True
d) True
e) True
f) False
g) True
Brainpop Smoking and Asthma Videos:
Asthma :
Asthma is a pretty common condition of the lungs. People with asthma have trouble breathing and sometimes they can experience coughing, shortness of breath, and tightness of the chest. When people breathe air is sucked into a series of narrower and narrower pathways that guide air into hundreds of millions of tiny air sacs called alveoli. In these sacs blood is replenished with oxygen and carbon dioxide is expelled. Sometimes the air isn't as fresh or clean, it can be filled with pollution, smoke, molds, pollen, pet dandruff, dust particles and etc. For people with asthma these tiny particles can trigger what's called an asthma attack. Things like exercise, food allergies, weather, and even strong emotions can also trigger an asthma attack sometimes. During asthma attacks the lung airways get irritated. When the cells in the lining of the airways detect a trigger like dust they overreact. They release chemicals which increase mucus production and cause the airways to swell. This causes the airway to narrow and makes it harder to breath. People with asthma should always have their inhaler so the medicine in it can reduce swelling in the airways and make it easier to breath. Doctors are really good at treating/ diagnosing asthma and with proper care people with asthma can do just about anything.
Smoking :
Smoking gives you bad breath, makes you cough and can lead to deadly illnesses like emphysema, lung cancer and heart disease. Cigarettes are made of a plant called tobacco and hundreds of chemicals including nicotine, tar, ammonia, and para-methoxybenzaldehyde. Lungs are supposed to take oxygen and distribute it to the rest of your body; by inhaling smoke instead of air it damages the cells in your lungs. The tar in cigarettes literally coats your lungs turning them black over time. It becomes hard to breath and it's more difficult for your lungs to distribute oxygen. Overtime some of these damaged lung cells can become cancerous. In fact smoking is the number one cause of lung cancer. Nicotine is a highly addictive chemical found in cigarettes which narrows your blood vessels and putts added strain on your heart causing all sorts of coronary problems. Nicotine is so addictive that it's really hard to stop smoking once you start. It's a drug and anyone who starts smoking is at high risk of not being able to stop.
Asthma is a pretty common condition of the lungs. People with asthma have trouble breathing and sometimes they can experience coughing, shortness of breath, and tightness of the chest. When people breathe air is sucked into a series of narrower and narrower pathways that guide air into hundreds of millions of tiny air sacs called alveoli. In these sacs blood is replenished with oxygen and carbon dioxide is expelled. Sometimes the air isn't as fresh or clean, it can be filled with pollution, smoke, molds, pollen, pet dandruff, dust particles and etc. For people with asthma these tiny particles can trigger what's called an asthma attack. Things like exercise, food allergies, weather, and even strong emotions can also trigger an asthma attack sometimes. During asthma attacks the lung airways get irritated. When the cells in the lining of the airways detect a trigger like dust they overreact. They release chemicals which increase mucus production and cause the airways to swell. This causes the airway to narrow and makes it harder to breath. People with asthma should always have their inhaler so the medicine in it can reduce swelling in the airways and make it easier to breath. Doctors are really good at treating/ diagnosing asthma and with proper care people with asthma can do just about anything.
Smoking :
Smoking gives you bad breath, makes you cough and can lead to deadly illnesses like emphysema, lung cancer and heart disease. Cigarettes are made of a plant called tobacco and hundreds of chemicals including nicotine, tar, ammonia, and para-methoxybenzaldehyde. Lungs are supposed to take oxygen and distribute it to the rest of your body; by inhaling smoke instead of air it damages the cells in your lungs. The tar in cigarettes literally coats your lungs turning them black over time. It becomes hard to breath and it's more difficult for your lungs to distribute oxygen. Overtime some of these damaged lung cells can become cancerous. In fact smoking is the number one cause of lung cancer. Nicotine is a highly addictive chemical found in cigarettes which narrows your blood vessels and putts added strain on your heart causing all sorts of coronary problems. Nicotine is so addictive that it's really hard to stop smoking once you start. It's a drug and anyone who starts smoking is at high risk of not being able to stop.
Friday, April 16, 2010
Healthy and Unhealthy Foods:
Everybody must know the difference between healthy and unhealthy foods. For a healthy body one must take a well balanced diet rich in proteins, carbohydrates and many different vitamins and minerals such as vitamins C and A, iron and calcium from a variety of foods and anti-oxidants. It is best to include more servings of fruits, vegetables, whole grains, and protein sources in our diet. It is always best to choose what you eat from the bottom of the food pyramid. Go for high green leafy vegetables, citrus fruits, fiber cereals and bread, and increased servings of fruit juices. To determine whether food is healthy or unhealthy we should look at the calories, fat content, salt content, and fibre. Unhealthy foods would be high in saturated fats, sugar, and salt. Unhealthy methods of cooking are deep-frying foods. Instead, try healthier cooking methods, such as boiling, grilling, roasting, and steaming. It is best to limit low-nutrient, deep-fried fast food items, such as pizzas, burgers, fried chicken, potato chips, French fries and sugar laden candies because they lack any of the essential elements such as proteins, fiber, vitamins and minerals. These are examples of Empty calorie foods which are high in calories, but low on nutrition. Unhealthy foods can also cause cancers and diseases from unhealthy fats such as statured fats and cholesterol. Statured fats and cholesterol can block up your arteries and statured fats can effect the blood cholesterol. The best diet is a healthy one has a healthy balance of all types of food in it but correct proportions.
Wednesday, April 14, 2010
Parts of The Digestive System and Their Functions:
Mouth:
1. Mechanical digestion – making food into small pieces easier digest
2. Saliva – chemical digestions carbohydrates sugar
Amylase rice and bread
Slimes, food slide down the esophagus
Esophagus:
Squeezes your food down to stomach.
Stomach:
1. Mechanical digestion – churning food
2. Stores food
3. Chemically digest protein – meat
- Makes acid to help break apart protein (meat)
- Enzyme pepsin
Small Intestine:
Fats – bile from liver/ enzyme lipase
Proteins - finished being digested – pepsin
Carbohydrates – finished being digested enzyme amylase
Digested food protein, carbohydrates, fats go into your blood
Pancreas:
1. Makes all of your digestive enzymes that go into the small intestine
2. Makes insulin which causes your cells to suck up the sugar in your blood
Liver:
1. Makes bile, which goes to the small intestine to help digest fat
2. Filters your blood
Large Intestine (Colon):
- Stores undigested waste food
- Absorbs all your water
1. Mechanical digestion – making food into small pieces easier digest
2. Saliva – chemical digestions carbohydrates sugar
Amylase rice and bread
Slimes, food slide down the esophagus
Esophagus:
Squeezes your food down to stomach.
Stomach:
1. Mechanical digestion – churning food
2. Stores food
3. Chemically digest protein – meat
- Makes acid to help break apart protein (meat)
- Enzyme pepsin
Small Intestine:
Fats – bile from liver/ enzyme lipase
Proteins - finished being digested – pepsin
Carbohydrates – finished being digested enzyme amylase
Digested food protein, carbohydrates, fats go into your blood
Pancreas:
1. Makes all of your digestive enzymes that go into the small intestine
2. Makes insulin which causes your cells to suck up the sugar in your blood
Liver:
1. Makes bile, which goes to the small intestine to help digest fat
2. Filters your blood
Large Intestine (Colon):
- Stores undigested waste food
- Absorbs all your water
What is My MYP Grade?
MYP Grade: 26/36 = 5/7.
Dear Mr. and Mrs. Al Thani,
In this year in Grade eight so far I have had a pleasure getting to know Wadha and have seen her abilities and difficulties in science. I would like to help Wadha improve in science this term and try even harder to show the best of her abilities. I am looking forward to getting to know both you and Wadha more this term. In grade eight students will achieve much this term in terms of academic growth, greater self-confidence, and improved social skills. Good communication between parent, teacher, and student is very important for your child’s academic growth. Students this term will learn about Body Energy: The study of Digestion and, Circulation, and Respiration and how they work together and Power to the People: The study of electricity, how is it made and how it travels through circuits and powers electronic devices.
I would like to briefly discuss homework. While we do have regular homework in Grade Eight I do not give a great deal of homework. On most nights, it should average between 30-60 minutes. Occasionally there will be no homework, and sometimes Wadha will have an opportunity to finish her homework in class. On rare occasions, your child may have more than one hour of homework. Each Day you can expect to find any homework assignments on my wiki: http://rhodesscience.qataracademy.wikispaces.net/, under grade 8 and the unit that we they will be learning. Wadha has completed 11 out of thee 16 homeworks assigned this term and by completing all or most of them next term she can achieve a higher effort grade. The purpose of homework is to reinforce what we have learned in class, and to teach responsibility. When Wadha has done her homework she is prepared in class to hear explanations of what she has had trouble with at home. I have noticed when Wadha doesn't have her homework done she loses both in learning through reinforcement, and in listening to explanations in class. I am also trying, in grade eight, to help students develop good work habits for future years.
Wadha has achieved a good grade this term: 5/7 although she can improve by following very simple steps. Wadha has a major difficulty in her criteria A, D, E and F grade. In criterion A: One world Wadha can improve by describing in detail how science is applied to the issue and describing in detail some of the benefits or limitations rather than describing both briefly. Also, by discussing in detail how science and its applications interact with one of these interactions: social, economic, political, environmental, cultural or ethical factors her criterion A grade can improve incredibly. For criterion D: Scientific Inquiry in Labs Wadha can try to identify both / all the main variables in the RQ and state a valid hypothesis in response to the RQ and using correct scientific language and explain it scientifically. Also, for the Apparatus and method she can try to suggest a complete list of relevant apparatus and procedures which would allow for the collection of the provided data, to allow a fair test of the hypothesis and for her evaluation based on her conclusion, she can reflect on the limitations of the method she has suggested, suggesting improvements and possible extensions which would provide a better test of their hypothesis. This can help boost her Criteria A and D grades dramatically.
For Wadha's criterion E Grade trying to be able to carry out all relevant calculations accurately and to be able to plot a relevant graph accurately is very important to show great data tables and presentations/graphs. Wadha has excellent writing skills and she does use them in her conclusion, but she doesn't follow instructions for an excellent conclusion. For and excellent conclusion she has to form a valid conclusion based on the scientific evidence (referring to patterns and trends in the data with an attempt at explaining these) and which describes to what extent the evidence supports the hypothesis. This way Wadha will have boosted her Criteria A, D and E grades. Although for Wadha's criterion F grade: Lab and Group achievement she needs to try harder with group efforts by discussing in her group during labs and try to come up with great experiments where she can use scientific terminology and try to find out interesting answers and facts. This Wadha can achieve a great effort grade and improve brilliantly with her academic grades.
I hope by following simple strategies and techniques I gave Wadha can achieve a much higher grade and hopefully this can help her in future years in science and maybe other subjects too. If you have any questions or would like to contact me for parents who use e-mail, I normally check my e-mail daily, and this is often the quickest and most efficient way to get in touch with me, or to discuss any of your concerns. I will respond promptly. Please feel free to e-mail me at any time, at: strhodes@qf.org.qa. If you have any special questions or concerns, don’t hesitate to come in any time; or send me a note with your child in the morning, or by e-mail; or set up a conference.
Sincerely,
Stephen Rhodes
Dear Mr. and Mrs. Al Thani,
In this year in Grade eight so far I have had a pleasure getting to know Wadha and have seen her abilities and difficulties in science. I would like to help Wadha improve in science this term and try even harder to show the best of her abilities. I am looking forward to getting to know both you and Wadha more this term. In grade eight students will achieve much this term in terms of academic growth, greater self-confidence, and improved social skills. Good communication between parent, teacher, and student is very important for your child’s academic growth. Students this term will learn about Body Energy: The study of Digestion and, Circulation, and Respiration and how they work together and Power to the People: The study of electricity, how is it made and how it travels through circuits and powers electronic devices.
I would like to briefly discuss homework. While we do have regular homework in Grade Eight I do not give a great deal of homework. On most nights, it should average between 30-60 minutes. Occasionally there will be no homework, and sometimes Wadha will have an opportunity to finish her homework in class. On rare occasions, your child may have more than one hour of homework. Each Day you can expect to find any homework assignments on my wiki: http://rhodesscience.qataracademy.wikispaces.net/, under grade 8 and the unit that we they will be learning. Wadha has completed 11 out of thee 16 homeworks assigned this term and by completing all or most of them next term she can achieve a higher effort grade. The purpose of homework is to reinforce what we have learned in class, and to teach responsibility. When Wadha has done her homework she is prepared in class to hear explanations of what she has had trouble with at home. I have noticed when Wadha doesn't have her homework done she loses both in learning through reinforcement, and in listening to explanations in class. I am also trying, in grade eight, to help students develop good work habits for future years.
Wadha has achieved a good grade this term: 5/7 although she can improve by following very simple steps. Wadha has a major difficulty in her criteria A, D, E and F grade. In criterion A: One world Wadha can improve by describing in detail how science is applied to the issue and describing in detail some of the benefits or limitations rather than describing both briefly. Also, by discussing in detail how science and its applications interact with one of these interactions: social, economic, political, environmental, cultural or ethical factors her criterion A grade can improve incredibly. For criterion D: Scientific Inquiry in Labs Wadha can try to identify both / all the main variables in the RQ and state a valid hypothesis in response to the RQ and using correct scientific language and explain it scientifically. Also, for the Apparatus and method she can try to suggest a complete list of relevant apparatus and procedures which would allow for the collection of the provided data, to allow a fair test of the hypothesis and for her evaluation based on her conclusion, she can reflect on the limitations of the method she has suggested, suggesting improvements and possible extensions which would provide a better test of their hypothesis. This can help boost her Criteria A and D grades dramatically.
For Wadha's criterion E Grade trying to be able to carry out all relevant calculations accurately and to be able to plot a relevant graph accurately is very important to show great data tables and presentations/graphs. Wadha has excellent writing skills and she does use them in her conclusion, but she doesn't follow instructions for an excellent conclusion. For and excellent conclusion she has to form a valid conclusion based on the scientific evidence (referring to patterns and trends in the data with an attempt at explaining these) and which describes to what extent the evidence supports the hypothesis. This way Wadha will have boosted her Criteria A, D and E grades. Although for Wadha's criterion F grade: Lab and Group achievement she needs to try harder with group efforts by discussing in her group during labs and try to come up with great experiments where she can use scientific terminology and try to find out interesting answers and facts. This Wadha can achieve a great effort grade and improve brilliantly with her academic grades.
I hope by following simple strategies and techniques I gave Wadha can achieve a much higher grade and hopefully this can help her in future years in science and maybe other subjects too. If you have any questions or would like to contact me for parents who use e-mail, I normally check my e-mail daily, and this is often the quickest and most efficient way to get in touch with me, or to discuss any of your concerns. I will respond promptly. Please feel free to e-mail me at any time, at: strhodes@qf.org.qa. If you have any special questions or concerns, don’t hesitate to come in any time; or send me a note with your child in the morning, or by e-mail; or set up a conference.
Sincerely,
Stephen Rhodes
The Mouth
The Mouth is the first portion of the alimentary canal that receives food and begins digestion by mechanically breaking up the solid food particles into smaller pieces and mixing them with saliva. The oral mucosa is the mucous membrane epithelium lining the inside of the mouth.
Mouth:
1. Mechanical digestion – making food into small pieces easier digest
2. Saliva – chemical digestions carbohydrates sugar
Amylase rice and bread
Slimes, food slide down the esophagus
Mouth:
1. Mechanical digestion – making food into small pieces easier digest
2. Saliva – chemical digestions carbohydrates sugar
Amylase rice and bread
Slimes, food slide down the esophagus
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