A Human Experiment Is Being Performed in Which Forearm Blood $\mathrm { PO } _ { 2 }$

question 15

Short Answer

A human experiment is being performed in which forearm blood flow is measured under a variety of conditions. The forearm is infused with a vasodilator, resulting in an increase in blood flow. Which of the following will occur? A. Tissue interstitial $\mathrm { PO } _ { 2 }$ will increase
B. Tissue interstitial $\mathrm { PCO } _ { 2 }$ will increase
C. Tissue $\mathrm { pH }$ will decrease

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Definitions:

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.

Limbic System

A complex set of brain structures located on both sides of the thalamus, immediately beneath the cerebrum, involved in emotions, memory, and arousal.

Prefrontal Cortex

A region of the brain implicated in decision making, complex cognitive behavior, personality expression, and moderating social behavior.