What Ordinarily Prevents Extensor Muscles from Contracting at the Same

question 44

Multiple Choice

 What ordinarily prevents extensor muscles from contracting at the same time as flexor muscles?

• A) The ligaments and tendons that bind them together
• B) Learned patterns of coordination in the cerebral cortex
• C) Inhibitory synapses in the spinal cord
• D) Control of both muscles by different branches of the same axon

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Definitions:

Research Method

Systematic and standardized procedures for collecting and analyzing data to understand and interpret various phenomena.

Dependent Variable

In research, this is a variable that is expected to change as a result of manipulation of the independent variable.

Climate Change

The systematic increase in worldwide surface temperatures and the resulting ecological change.

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Extreme weather phenomena that can cause significant damage and hazard, including hurricanes, tornadoes, thunderstorms, and hailstorms.