The path of the internal carotid artery

The contents of the intracranial cavity are largely supplied by the circle of Willis anastomosis. The internal carotid arteries and vertebral arteries supply the anterior and posterior circulatory components of the anastomosis respectively. This article will focus on the internal carotid artery (ICA) and it's complex journey from the extra-cranial region to the intracranial space.

Key neurovascular structures in the head & neck

The neck represents an important zone of transition between the head, thorax and arms. Critical neurovascular structures are densely packed and traverse this region; having a sound anatomical awareness of this region is key for performing surgery in this region, and appreciating the effect of pathological processes on the neurovascular supply. In this article we will focus on the anterior neurovascular structures, the vertebral arteries will be discussed in a separate article.