下列何者由脊髓背核(nucleus dorsalis of Clarke)發出,主要傳遞下肢的本體感覺(proprioception of lower limbs)?
背側脊髓小腦徑(dorsal spinocerebellar tract)
腹側脊髓小腦徑(ventral spinocerebellar tract)
楔狀核小腦徑(cuneocerebellar tract)
吻端脊髓小腦徑(rostral spinocerebellar tract)