Essay On Respiration

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During quiet inspiration the diaphragm and external intercostals contract. When the diaphragm contracts it moves down which increases the size of the thoracic cavity from top to bottom. When the external intercostals contracts it elevates the ribs which increases the size of the thoracic cavity from front to back and from side to side. During forced inspirations sternocleidomastoid, serratus anterior, and pectoralis minor contract. Lastly, during forced expiration the abdominal muscles and the internal intercostals contract.
2. To which structure in the human respirator system does each of the following structures in the lung demonstration model correspond?
a. Balloons: lungs c. Glass y tube: trachea and bronchi
b. Rubber sheeting: diaphragm
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What is the normal rate of respiration per minute?
The normal respiration rate per minute for an adult is 8 to 16 breaths per minute. For an infant, a normal rate is up to 44 breaths per minute.
3. Why does respiratory rate increase after exercise?
Respiratory rate increases after exercise because when you exercise your muscles work harder and needing more oxygen than normal to burn extra calories. The blood is picking up oxygen as it travels through your lungs and delivers it to the muscles. So the more you exercise, your breathing rate increases bring more oxygen to your lungs so that the lungs can pump more oxygen into your blood and out to your muscles. Also when you exercise, the brain signals increases in heart and breathing rates in anticipation of the increased need for oxygen and carbon dioxide exchange of exercise.
4. What information might be derived from examine a patient’s respiratory sounds?
Breathing sounds can indicate problems within the lungs such as blockage, inflammation, or infection. An abnormal breath sound can indicate fluid in the lungs or asthma. Breath sounds are an important part of diagnosing many different medical conditions.
Part E: Temperature and Composition of Exhaled
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Explain the difference between room temperature and the temperature of exhaled air.
The difference between room temperature and the temperature of exhaled air is that the temperature of exhaled air is your body temperature. Therefore, exhaled air should be higher than the room temperature. Room temperature is about 21 °C (70 °F). Body temperature is 37°C (98.6°F).
2. What is the origin of the material that collects on the glass plate? The material that collects on the glass plate originates from oral cavity and thoracic cavity.
3. Why does the bromothymol blue solution change color?
The bromothymol blue solution changes color because there is a reaction to a pH change. A color changes indicates that a chemical reaction just took place. When blowing bubbles in the solution, carbon dioxide is breathed into water and it reacts with water to form carbonic acid.
4. Explain why hyperventilation causes an increase in blood pH.
During hyperventilation cause an increase in blood pH because hyperventilation causes loss of carbon dioxide from the body, causing the pH of blood to increase. The hemoglobin in the blood binds with the

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