Which of the Following Best Represents the Partial Pressures of All

question 21

Multiple Choice

Which of the following best represents the partial pressures of all gases in the normally ventilated and perfused alveolus when breathing room air at sea level?

• A) PO₂ = 40 mm Hg; PCO₂ = 100 mm Hg; PN₂ = 573 mm Hg; PH₂O = 47 mm Hg
• B) PO₂ = 100 mm Hg; PCO₂ = 40 mm Hg; PN₂ = 573 mm Hg; PH₂O = 47 mm Hg
• C) PO₂ = 100 mm Hg; PCO₂ = 40 mm Hg; PN₂ = 713 mm Hg; PH₂O = 47 mm Hg
• D) PO₂ = 149 mm Hg; PCO₂ = 40 mm Hg; PN₂ = 573 mm Hg; PH₂O = 47 mm Hg

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Definitions:

Typical 2-Month-Old

A developmental reference for infants around two months of age, who often show progress in smiling, cooing, and increased alertness.

Imitation Reflex

An innate reflex observed in infants where they mimic gestures or facial expressions, playing a role in learning and social interaction.

Deferred Imitation

The ability to reproduce a behavior that was observed at an earlier time, even when the model is no longer present.

Vygotsky's Theory

A developmental theory that emphasizes the role of social interaction in cognitive development.