In the Four-Chamber View, All Pulmonary Veins Are Imaged Except

question 16

Multiple Choice

In the four-chamber view, all pulmonary veins are imaged except which one of the following veins?

• A) Left lower
• B) Right lower
• C) Left upper
• D) Right upper

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Definitions:

Species Richness

The number of species in a community.

Tropical Rain Forest

A lush, species-rich forest biome that occurs in tropical areas where the climate is very moist throughout the year. Tropical rain forests are also characterized by old, infertile soils.

Unit Area

A specific measurement used to describe the quantity of an object or substance within a defined area of space.

Keystone Species

A species whose presence in an ecosystem largely determines the species composition and functioning of that ecosystem.