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Neuroanatomy › View

Which brain regions are key components of the descending central nervous system (CNS) pathway of pain modulation?

A. Hippocampus and amygdala

B. Thalamus and hypothalamus

C. Periaqueductal gray (PAG) and rostral ventromedial medulla (RVM)

D. Cerebellum and basal ganglia

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Immunology › View

The basic antibody unit is composed of

A. 2 identical heavy chains and 2 different light chains

B. 2 identical heavy chains and 2 identical light chains

C. 2 different heavy chains and 2 identical light chains

D. 2 different heavy chains and 2 different light chains

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