The cerebral circulation and cerebrovascular disease I: Anatomy

Area of Science:

• Neurology
• Vascular Anatomy

Background:

• The first paper in a three-part series on cerebrovascular anatomy, pathogenesis, and stroke.
• Establishes the anatomical framework for understanding cerebrovascular diseases.

Purpose of the Study:

• To describe the anatomical foundation of the cerebrovascular system.
• To differentiate the anterior and posterior arterial circulations.
• To provide context for subsequent discussions on cerebrovascular disease pathogenesis.

Main Methods:

• Systematic description of the arterial system, from aortic origin to cerebral circulation.
• Detailed account of the anterior and posterior arterial divisions.
• Description of the cerebral venous system, including veins and dural sinuses.

Main Results:

• The arterial system is divided into anterior and posterior circulations with distinct features and pathogenic potentials.
• The arterial system's function of nutrient and gas exchange is highlighted.
• The cerebral venous system, comprising veins and dural sinuses, is elucidated.

Conclusions:

• A comprehensive anatomical description of the cerebrovascular system is provided.
• This anatomical foundation is crucial for understanding cerebrovascular disease.
• Sets the stage for discussing pathogenesis and stroke in subsequent papers.