Respiratory system

The trachea branches off into...

• Alveoli

• Bronchi

• Bronchioles

• Venules

Which is NOT a function of the respiratory system?

• Brings air into lungs

• Transfers oxygen into the blood

• Transports oxygen to working muscles

• Removes carbon dioxide from the body

The diaphragm is...

• A voluntary muscle

• A covering on the outside of the lungs

• A muscle responsible for inhalation and exhalation

• The muscles between the ribs that aid in breathing

The alveoli...

• Are air sacs where pulmonary gaseous exchange occurs

• Attached to the bronchi

• Contain pure oxygen

• Assist in the delivery of oxygenated blood

Ventilation =

• Stroke Volume x Respiratory rate

• Tidal Volume x Cardiac output

• Tidal Volume x Respiratory rate

• Tidal Volume x heart rate

As air is drawn into lungs...

• Air pressure is high

• Intercostal muscles relax

• The ribcage moves down and in

• The diaphragm contracts and moves downwards

Vital capacity is...

• The volume of air that can be held in the lungs after maximum inspiration

• Equal to Tidal Volume

• The maximum amount of air that can be breathed out after maximum inspiration

• Maximal oxygen uptake (VO2 max)

Pulmonary gaseous exchange...

• Is the exchange of O2 and CO2 between the alveoli and capillaries

• Is the diffusion of gases at the muscles

• Is Oxygen moving from low concentration to high concentration

• Is where blood becomes deoxygenated

Which of the following is NOT an acute response of the respiratory system?

• Increased respiratory rate

• Increased ventilation

• Increased aVO2 diff

• Increased diffusion

Regarding the picture, which statement is true as exercise begins?

• Tidal volume stays the same

• Residual volume increases

• The inspiratory and expiratory reserves decrease

• Vital capacity increases