Dr. Ebersole watched the tip of the skewer safely pass the vertebral artery. " It's sliding pretty easy now, " said Dr. Peterson.

埃伯索尔看着杆子的尖端安全地通过了椎动。特森医生说，“现在移动它非常轻松”。

But the skewer was now so close to the vertebral artery that it was bending it.

但是尖杆离椎动太近了，使它产生了弯。

Carotid arteries supply the front of the brain, and vertebral arteries supply the back.

颈动为大脑前部供血，而椎动则为大脑后部供血。

An autopsy confirmed Keith's cause of death to be blunt head trauma, which resulted in dissection of the left vertebral artery and caused a fatal brain bleed.

尸检证实， 基思的死因是头部钝伤，这导致了左侧椎动的撕裂， 并引发了致命的脑出血。

It's a dissection of an artery, either the vertebral artery in the back or the carotid artery up closer in the front.

这是动的剥离，可能是后部的椎动或前部较近的颈动。