Compute Using a Calculator

question 111

Multiple Choice

Compute using a calculator.
-20 - -19 + -16

• A)-23
• B)17
• C)-17
• D)23

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Definitions:

Neurotransmitters

Chemical substances in the nervous system that transmit messages between neurons or from neurons to muscles.

Endorphins

Natural, pain-relieving chemicals produced by the body during stress, exercise, or pain, promoting feelings of well-being and reduce discomfort.

Morphine

A powerful pain-relieving medication derived from opium, used to treat severe pain.

Gate-Control Theory

A theory that suggests pain is not solely a result of physical injury but is also affected by psychological factors; it proposes that pain signals pass through neural "gates" in the spinal cord.