Identify the statement that correctly describes ventilation-perfusion matching in the lungs of a healthy individual in the upright posture.

A. alveoli at apex overperfused
B. alveoli at apex underventilated
C. alveoli at base overperfused
D. alveoli at base overventilated
E. matching unaffected by gravity


Ans: C. alveoli at base overperfused

Anatomy & Physiology

You might also like to view...

Using this assay, glucose concentration is _______.

A) directly proportional to the volume of blood sampled B) inversely proportional to the volume of blood sampled C) inversely proportional to optical density D) directly proportional to optical density

Anatomy & Physiology

The clumping of red blood cells, which occurs when incompatible blood types are mixed, is an example of

A) agglutination. B) opsonization. C) sensitization. D) precipitation. E) immunological surveillance.

Anatomy & Physiology

What type of cartilage covers the ends of long bones?

A. Elastic cartilage B. Hyaline cartilage C. Fibrocartilage D. Fibroelastic cartilage

Anatomy & Physiology

The molecule H2 is known as

A) hydrohydrogen. B) hydrogen. C) hydroxide. D) helium. E) semi-water.

Anatomy & Physiology