Respiratory System (Practicum 2)

Question 1

what is intrapulmonary pressure?

Answer 1

air pressure inside lungs

Question 2

what is the relationship between lung volume and intrapulmonary pressure?

Answer 2

a decrease in lung volume increases intrapulmonary pressure - vice versa

Question 3

how does the bell jar example correlate with with anatomical structures?

Answer 3

• rubber sheet = diaphragm
• balloons = lungs
• glass bell = thoracic cage
• y-shaped glass tube = trachea & primary bronchi

Question 4

what is the function of the respiratory system?

Answer 4

• gas exchange between air & blood, O2 & CO2
• olfaction
• vocalization
• regulate pH of blood

Question 5

what is the pathway of air through the respiratory tract during inhalation and exhalation?

Answer 5

1. inspiration - air containing O2
2. O2 moves into blood
3. O2 transports dissolved gas and oxyhemoglobin
4. O2 moves into systemic cells
5. CO2 moves into blood
6. CO2 transports dissolved gas, carbaminohemoglobin, bicarbonate
7. CO2 moves into alveoli
8. expiration - air containing CO2

Question 6

what is a spirometer measure?

Answer 6

lung volumes and capacities

Question 7

what are some symptoms that indicate respiratory disease?

Answer 7

• shortness of breath
• fast heart rate
• extreme tiredness
• crackling sounds in the lungs
• fast breathing or rapid, shallow breaths