The Nervous System Begins to Appear in the __________ Week

question 1

Multiple Choice

The nervous system begins to appear in the __________ week.

• A)second
• B)third
• C)sixth
• D)seventh

---

Definitions:

Opiate-Like Effects

Effects similar to those produced by opiates (pain relief, euphoria, sedation) that some substances or activities can induce without involving opiate drugs.

Gate Control Theory

A theory of pain holding that structures in the spinal cord act as a gate for sensory input that is interpreted as pain.

Emotions

Complex psychological states that involve physiological arousal, expressive behaviors, and conscious experience.

Anzio Beachhead

A military operation during World War II where Allied forces landed on the beaches of Anzio, Italy, attempting to bypass German defenses and capture Rome.