Which of the Following Does NOT Occur When Blood Flow

question 68

Multiple Choice

Which of the following does NOT occur when blood flow to an area of the lungs is reduced but the area receives normal air flow

• A)The concentration of CO₂ in this area decreases.
• B)The change in CO₂ concentration causes the smooth muscles of the local airways to relax.
• C)The change in CO₂ concentration leads to increased resistance of local airways.
• D)The change in O₂ concentration leads to dilation of local blood vessels.

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Definitions:

Drooping Eyelid

A condition, known medically as ptosis, where one or both eyelids fall to a lower position than normal.

Ptosis

A condition characterized by the drooping or falling of the upper eyelid.

Esotropia

A condition in which one or both eyes turn inward, causing a misalignment of the eyes.

Audible Expiratory Wheezes

Sounds made by the outgoing breath through narrowed airways, often heard in conditions like asthma and indicative of respiratory obstruction or distress.