Which Word Best Describes the Following: Spinothalamic,pyramidal,corticospinal

Question

Which word best describes the following: spinothalamic,pyramidal,corticospinal?
A) Meninges
B) Plexuses
C) Tracts
D) Motor tracts

Accepted Answer

These three terms all refer to specific pathways or tracts of nerves within the central nervous system, so the best choice is "tracts." Choice D ("motor tracts") is not specific enough, as not all of these pathways are exclusively involved in motor function. Choices A and B both refer to other structures or systems within the nervous system and are therefore not relevant.