-This Figure Shows Motor Pathways

question 59

Multiple Choice

-This figure shows motor pathways.What tract does number 2 indicate?

• A)Lateral corticospinal tract
• B)Rubrospinal tract
• C)Anterior corticospinal tract
• D)Vestibulospinal tract
• E)Tectospinal tract

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Definitions:

Ophiolite

A portion of the Earth's oceanic crust along with the upper mantle beneath it that has been elevated and is now visible above the surface of the sea.

Oceanic Crust

The part of the Earth's crust that underlies the ocean basins, generally thinner and more dense than continental crust, formed at mid-ocean ridges and recycled into the mantle at subduction zones.

Sheeted Dikes

A geological formation consisting of numerous parallel dikes formed when magma intrudes into a crack then solidifies.

Subduction-derived Magma

Magma that is formed by the melting of subducted oceanic crust beneath a continental plate.