the spinal cord is a part of a body
spinal_cord is not internal_body_part. spinal_cord is internal_body_part. spinal_cord is anatomical_structure. spinal_cord is body_part. spinal_cord is not body_part. spinal_cord is neural_structure. sacral_spinal_nerve is spinal_nerve. spinal_cord is cord_like_object. spinal_cord is not anatomical_structure. lumbar_spinal_nerve is spinal_nerve.