Moving a Leg or Arm Back and Forth Requires Opposing

question 37

Multiple Choice

 Moving a leg or arm back and forth requires opposing sets of muscles called ____.

• A) Extensor muscles
• B) Flexor muscles
• C) Cardiac muscles
• D) Antagonistic muscles

---

Definitions:

Maintaining Waking Activity

Maintaining waking activity refers to the processes that keep the brain alert and awake, involving interactions between neurotransmitter systems and brain structures.

SSRIs

Selective Serotonin Reuptake Inhibitors are a class of drugs commonly used to treat depression by increasing serotonin levels in the brain.

Ritalin

A medication commonly prescribed to treat Attention Deficit Hyperactivity Disorder (ADHD) by affecting neurotransmitters in the brain.

Opioids

A class of drugs that include the illegal drug heroin, synthetic opioids such as fentanyl, and pain relievers available by prescription, noted for their potent analgesic properties.