The Different Organs of Respiration and How They work with the Circulatory System | Our Journey In Science 4

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In this blog, I am going to share what we discussed about the Different Organs of Respiration and How they work with the Circulatory System. But before our meeting started, he sent us a YouTube link on how to make lungs with balloons and the gas exchange. We started our class with an opening prayer lead by Sir Rommel, and then proceeded to our lesson. He asked us on how do we breath regarding on the video we watched before the meeting.


What happened to the two balloons attached to the capillary tube?
- The balloon got bloated because the large balloon was stretched and the two balloons got inflated.

When the large balloon is not yet stretched or pull down, how do the two small balloons appear?
- When the large balloon is not yet pulled, the two small balloons are relaxed or deflated.

How does the improvised breathing apparatus simulate the breathing process?
- It's just want to show to us, when the air enter in our lungs, our lungs expanded. Because it fills with air and when we exhale, the lungs is relaxing.

Have you experienced breathing through your mouth? When does it happen?
- Yes, after running or sometimes when we have a cold. We tend to use our mouth to breath.


After we answer those questions, we proceeded to our lesson. We first discussed the parts of the respiratory system. It consists of the nose, epiglottis, larynx/voice box, trachea, bronchi and bronchioles. Nose, the main gateway of respiratory system. Air passes through the throat. Epiglottis is the flap of muscle that guards the path of pharynx. The function of epiglottis is to close the passage to the larynx or the voice box when we eat. So if there's one grain of rice that entered the larynx, this cause us to be choke. When we do not eat, the epiglottis open up the passage way to release the air inside. The trachea, informally called the windpipe, it is a cartilaginous cylinder that interfaces the larynx to the bronchi of the lungs, allowing the entry of air, as is available in practically all air-breathing creatures with lungs. The lungs are cone shaped organs used for respiration.It is covered with a two-layered membrane, called pleura. Hilum, inner surface of the lungs are slit-like openings. Diaphragm is a sheet of smooth muscle located below the lungs.

Our teacher told us that it's gonna be confusing because Artery carries oxygenated blood to the entire body except the lungs. While veins carry deoxygenated blood from the entire body except lungs back to the heart. Then pulmonary artery to the lungs carry deoxygenated blood, while pulmonary veins from lungs to heart carries oxygenated blood.


The Breathing Process

Drawing and Expulsion also called Inhale and Exhale. When the air enters, the lungs expand, the ribcage up and out and the diaphragm moves down.When the air leaves, the lungs get smaller, the ribcage move down and in and lastly, the diaphragm moves up. Exchange of gases between the lung and the blood. Oxygen diffuses to the blood stream via capillaries.
The breathing process involves the alternate contraction and relaxation of the diaphragm, abdominal muscles, and intercostal muscles. Actual exchange of gases takes place between the alveoli of the air sacs and the blood. We tackle also the exchange of gases between the lung and the blood and the coordinated functions of the circulatory and the respiratory system.

Lastly, our teacher discussed also the lifestyles that affect the functioning of the circulatory and the respiratory systems. Chronic diseases that are considered as the leading causes of mortality in the world. Most cardiovascular and lung diseases are chronic in nature. Most of them are caused by smoking, sedentary lifestyle, alcohol abuse, and poor eating and dietary habits. It is also important to know on how to prevent chronic diseases. Such as life style check, avoid hazardous chemicals introduced to our body, eat healthy food for better immune response and the importance of physical activities/exercise.


After the discussion, our teacher assigned us to do create a poster on the effect of smoking in Cardiovascular and Respiratory System, make a graphic organizer and sketch of different organs of respiration.



That's all for today, overall I feel I learned a lot in our lesson and very informative. Thanks and have a great day!




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