Which Structure or Region in or Connected to a Four-Chambered

question 219

Multiple Choice

Which structure or region in or connected to a four-chambered mammalian heart contains blood with the highest O₂ concentration?

• A) Right atrium
• B) Pulmonary vein
• C) Pulmonary artery
• D) Superior vena cava
• E) Right ventricle

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Definitions:

Prefrontal Cortex

The front part of the frontal lobe responsible for complex cognitive behavior, decision making, and moderating social behavior.

Amygdala

A tiny brain structure that registers emotions, particularly fear and anxiety.

Growth Spurt

The relatively sudden and rapid physical growth that occurs during puberty. Each body part increases in size on a schedule: Weight usually precedes height, and growth of the limbs precedes growth of the torso.