Respiratory Exam 1 - Jones - Respiratory mechanisms

Which of the following is the main function of the respiratory system

• Clot dissolution

• Maintaining blood pH

• Hormone activation

• Oxygen and Carbon dioxide exchange

Place the following in the proper order of respiration starting with ventilation and ending at tissue cells

• Gas exchange - movement of gases from alveoli into capillaries

• Gas exchange - move gases from RBC to tissues

• Cells - can undergo cellular respiration

• Ventilation - how we get air into the lungs

• Gas transport - RBC carry the gases to tissues

Lung tissue wants to be

• Small

• Large and expand

The chest wall attached to the lungs wants to

• constrict inwards

• pull outwards

Match the following lung pressures with their proper descriptions

• alveolar pressure

• P_ip

• Intrapleural pressure

• P_alv

• gas pressure at the nose and mouth

• P_atm

• Transpulmonary pressure

• P_Tp

At peak inspiration what is P_alv

• 0

• +2

• -2

• unknown

Which of the following are key events during inhaling (select all that apply)

• Pressure in alveoli increases

• Volume in alveoli increases

• Expand chest and P_ip becomes more negative

• air flows into alveoli and fills lungs

• Air flows out

Which of the following are key events during exhaling (select all that apply)

• Pressure in alveoli increases

• Volume in alveoli increases

• compress chest and P_ip becomes less negative

• air flows into alveoli and fills lungs

• Air flows out

Which of the following best describes pneumothorax

• hole in chest wall

• quiet breathing

• inhalation chest expansion

• Exhalation chest shrinkage

During pneumothorax there is an equalization of pressure and the lung collapses due to not being able to generate P_tp

• True

• False