Videos:
http://www.smm.org/heart/lungs/breathing.htm
Basic Lung Diagram
Complex Lung Diagram
Inside of the Lungs
Parts of the Respiratory System and Their Function:
What Happens When We are More Active than Usual?
The more activity you do the more energy your body needs. The exchange of oxygen and carbon dioxide helps you get this energy. If you need more energy, the oxygen and carbon dioxide exchanges need to happen more and this causes you to breath more and heavier.
What makes you cough, sneeze, yawn and hiccup?
Coughing
- Even though it seems like a bad thing, coughing actually helps you. When you cough you are clearing you throat and trachea of anything causing less oxygen to reach your lungs and less carbon dioxide to leave your body. Without coughing mucus and other things would make you sick and disease your lungs.
Sneezing
Also called sternutation, sneezing is a way to relieve irritation in your nose. When the inside of your nose gets a tickle, a message is sent to a special part of your brain called the sneeze center. The sneeze center then sends a message to some muscles which include the abdomen, chest muscles, the diaphragm, and the muscles that control your vocal cords to make a sneeze. This is why it hurts when you sneeze.
Fun Facts:
- Every single time you sneeze you close your eyes.
- Human sneezes travel really fast. The world record for the fastest sneeze is 120 per hours in speed.
Hiccuping
- When you eat too much or too quickly or feel nervous or excited, your diaphragm might get irritated causing it to pull up or down in a jerky way. This makes you suck air into your throat suddenly. When this air hits your larynx or voice box it causes you to hiccup.
Fun Fact: Charles Osborne of Anthon, Iowa holds the Guinness World Record for hiccuping. He hiccuped for 68 years straight!
Yawning
Most people think you yawn when you are tired, sleepy, or bored. That is partially true. When you are tired or bored you breathe slower. When you breathe slower, your body doesn't get enough oxygen or release enough carbon dioxide so your brain makes you take an extra breathe to release the extra carbon dioxide and gain more oxygen.
Vocabulary
Autonomic- any part of the nervous system that works without a person’s having to think about it
carbon dioxide- a waste product made by cells of the body; a gas in the air made of carbon and oxygen atoms: Humans rid themselves of carbon dioxide waste by exhaling, or breathing out.
respiratory system- the system of the body that brings oxygen into the body and releases carbon dioxide
lungs- organs of the respiratory system that bring oxygen-rich air into the body and send oxygen-poor air out of the body
oxygen- an element that makes up about 21% of Earth's atmosphere; a gas in Earth's atmosphere and in water that living organisms breathe
respiration- the process of taking in oxygen and releasing carbon dioxide from the body; also the process in which cells use oxygen to get energy from food
Trachea- the tube in the body through which air moves as it travels to and from the lungs; the windpipe
1. What is the function of the respiratory system?
Answer: The respiratory system brings oxygen to the body. It also helps eliminate waste gases. It works closely with the circulatory system.
2. Why are the lungs important for they body?
Answer: The lungs are important because they draw in the air that we breathe. Air sacs fill with oxygen and then pass the oxygen into the blood. The lungs also help expel waste gases.
3. What happens when we breathe?
Answer: When we breathe in, the diaphragm lowers and the air is drawn into the lungs through the mouth or nose. The lungs expand to allow the air to enter, and tiny alveoli fill up. These alveoli then transfer their oxygen to the blood, which brings the oxygen to all parts of the body. At the same time, the blood brings waste materials, like carbon dioxide, from the body to the lungs, where it is released from our body when the diaphragm presses upward and we exhale.
Fun Facts About...
The Respiratory System
There are about 300 million alveoli on a pair of human lungs.
In humans, right lung is larger than left lung because of where the heart is located.
An average person breathes 13 pints of air each minute. That's a total of 1,440 pints of air each day or 525,600 pints each year!
Women and children breathe faster than men.
Respiratory system specialists are called pulmonologist.
The lung is the most important organ in the human body.
Young children laugh an average of 300 times in a day, but adults average 15 - 100 times in a day.
Laughter is the best thing for your immune system.
Newborns up to 6 weeks take 30 to 60 breaths per minute and adults only take 12 to 20 breaths per minute.
Any Questions????
- Nasal Cavity: Your nasal cavity cleans, moisturizes, and warms the air as it goes inside of you.
- Pharynx: Your pharynx is where the throat divides between the trachea (windpipe) and you esophagus (food pipe). Also where the epiglottis is located. The epiglottis prevents food from going down your windpipe.
- Larynx: Your larynx is your voice box and helps you to not choke. Without your voice box you would not be able to make a sound or talk.
- Trachea (windpipe): The trachea is the tube that carries air into your lungs. Inside you trachea the is a membrane with tiny hairs that collect dust before it enters your lungs.
- Bronchi: This is where your trachea divides into two tubes. The left bronchi is narrower and longer than the right bronchi.
- Bronchioles: As your bronchi go into your lungs they branch off into smaller parts called bronchioles.
- Alveoli: Alveoli are small air sacs located on the tips of the bronchioles. Inside the alveoli are thin walls that allow gas exchange between oxygen and carbon dioxide.There are about 3 million alveoli in one adult lung.
- Lungs: The lungs take in oxygen and remove carbon dioxide. They are made of pinkish-grayish spongy tissue.
- Diaphragm: The diaphragm is a broad band muscle that sits under the lungs that allows the lungs to move and to help you breath.
Respiration is breathing.
What happens when we breath?
When we breath, air enters our body through our mouth or nose and down our throat. Then it goes through the trachea and to the lungs. A lot of this oxygen is passed into the blood cells that eventually travels to your heart. Carbon dioxide that is in our lungs goes up the trachea and out our mouth or nose.
Time for Our Activities!
Activities URLs:
http://www.e-learningforkids.org/Courses/Liquid_Animation/Body_Parts/Respiratory_System/
http://kidshealth.org/kid/htbw/_bfs_RSquizsource.html
That Concludes Our Presentation. Hope you didn't get to bored!