Biological Processes That Systematically Vary Over a 24-Hour Cycle Are

question 364

Multiple Choice

Biological processes that systematically vary over a 24-hour cycle are called _____ and are regulated by a cluster of neurons called the _____.

• A) intrinsic rhythms; melatonin cluster
• B) circadian rhythms; suprachiasmatic nucleus
• C) circadian rhythms; pineal gland
• D) brain waves; suprachiasmatic nucleus

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Definitions:

Efferent

Conducting away from a CNS structure.

Afferent

Conducting toward a central nervous system (CNS) structure.

Muscle Spasticity

A condition characterized by an abnormal increase in muscle tone or stiffness, which can interfere with movement, speech, or cause discomfort and pain.

Dyskinesia

A category of movement disorders characterized by involuntary muscle movements, often as a side effect of long-term medication use.