If the Left Corticospinal Tract Is Severed in the Neck

question 18

Multiple Choice

If the left corticospinal tract is severed in the neck near the first cervical vertebra,

• A)muscles in the right arm and leg are paralyzed.
• B)muscles in the left arm and leg are paralyzed.
• C)pain impulses from the right side are blocked.
• D)pain impulses from the left side are blocked.

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Definitions:

Wavelengths

The distances between successive crests of a wave, typically used in the context of electromagnetic waves, such as light and radio waves.

Place Theory

A theory in hearing that suggests the perception of pitch corresponds to the vibration of different places along the basilar membrane of the inner ear.

Basilar Membrane

A critical structure in the cochlea of the inner ear, it plays a key role in the mechanical analysis of sound waves for hearing.

Cochlea

A spiral-shaped cavity within the inner ear, playing a crucial role in converting sound waves into electrical signals.