Arrange the Following in Order from Highest to Lowest PO₂

question 150

Multiple Choice

Arrange the following in order from highest to lowest PO₂.
(1) PO₂ of pulmonary veins
(2) PO₂ of pulmonary artery
(3) PO₂ of alveolar air

• A) 1, 2, 3
• B) 2, 1, 3
• C) 2, 3, 1
• D) 3, 1, 2
• E) 3, 2, 1

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Definitions:

Egocentric

The tendency to view everything in relation to oneself, without considering the perspectives or feelings of others.

Limbic System

A complex system of nerves and networks in the brain, involving several areas near the edge of the cortex concerned with instinct and mood. It controls the basic emotions (fear, pleasure, anger) and drives (hunger, sex, dominance, care of offspring).

Brain Plasticity

The ability of the brain to change and adapt as a result of experience, including the forming and reorganizing of synaptic connections.

Myelination of Nerve Fibers

The process of coating the axons of neurons with myelin, a fatty substance that improves the speed and efficiency of electrical impulses along nerve cells.