POST-LECTURE ACTIVITY: RESPIRATORY SYSTEM

ROLDAN - POST-LECTURE ACTIVITY

ROLDAN - POST-LECTURE ACTIVITY

by Ashanti Pauline Roldan -
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1. Initiation of exercise - The body uses more oxygen and produces more carbon dioxide due to the effort exerted on one's muscle compared to when at rest.

2. Moderate exercise - Same with initiation of exercise, the body uses more oxygen and produces more carbon dioxide due to the effort exerted on one's muscle compared to when at rest. Breathing rate increases as one's level of activity increases

3. Asthma attack - During an asthma attack, trouble in breathing occurs as one's airways are inflamed or swollen.

4. Abrupt ascent into high altitudes - In high altitudes, there is a low air pressure which results to less oxygen available for breathing as to why sudden ascent into higher altitudes may result to hypoxia or inadequate oxygen supply to tissues.  

5. Pneumonia - In pneumonia, the alveoli or air sacs are filled with fluid such as pus, which limits intake of oxygen and makes breathing harder or painful.

6. Paralysis of phrenic nerve - Paralysis in the phrenic nerve causes one side of the diaphragm to be elevated which reduces lung capacity that causes a person to experience shortness of breath or difficulty in breathing.

7. Severe tuberculosis with resulting lung scar tissue - TB (tuberculosis) bacteria when inhaled, multiplies in a person's lung that causes a person to cough phlegm and this phlegm may be bloodstained when TB gets close to a blood vessel in the lung. Fluid may accumulate between the lungs and the chest wall (pleural effusion) which causes damaged lungs and a person to be breathless.

8. Severe anemia - Anemia is when a person has a low count of red blood cells and the body does not get enough oxygen-rich blood which causes the lungs to overcompensate to bring more oxygen which results to breathing difficulties. Red blood cells function to transport oxygen in the body, when they are low in numbers, cells and tissues are not able to receive the oxygen they need in order to function. 

9. Advanced COPD (chronic obstructive pulmonary disease) - Also referred as emphysema (alveoli are damaged which results to a decrease in surface area that makes breathing difficult) or chronic bronchitis (irritation and swelling or inflammation of the bronchial tubes).

10. Advanced pregnancy - Trouble in breathing can occur with a pregnant woman as enlarging of uterus may result to a pressure in the diaphragm which hinders the lungs to fully expand.