Cerebral Arterial Anatomy and Physiological Function

The cerebral arterial network comprises a complex arrangement of major vessels that ensure stable perfusion and metabolic support to the brain. At its core lies the cerebral arterial circle, which interconnects the anterior and posterior circulations and provides redundancy against occlusive events. From this circle arise the anterior, middle and posterior cerebral arteries, which branch extensively to supply the cortex, subcortical structures and brainstem. Autoregulatory mechanisms maintain constant cerebral blood flow despite systemic fluctuations, while specialised anatomical adaptations—such as counter-current heat exchange systems in certain mammals—protect neural tissue from thermal stress. The interplay between vascular architecture and physiological control underpins neurological health, informs surgical approaches and guides the development of therapies for stroke and other cerebrovascular disorders.

Research from Nature Portfolio

Recent studies have furnished a detailed topographic atlas of the camel brain, revealing discrete gyri and sulci with precise colour-coded mapping. This work has refined anatomical nomenclature by delineating previously unrecognised sulcal boundaries and gyri such as the ectomarginal and splenial regions. By establishing a standardised framework for exterior brain architecture, these findings will support comparative analyses across species and improve the anatomical basis for translational research into cerebral function and pathology.

Cerebral Arterial Anatomy and Physiological Function publication trend

The graph below shows the total number of articles in cerebral arterial anatomy and physiological function across all publications each year (not limited to Nature Index journals).

Technical terms

Cerebral arterial circle (Circle of Willis): A ring-like arterial anastomosis at the base of the brain that links anterior and posterior circulations.

Internal carotid artery: A major paired vessel ascending through the skull to supply the forebrain and retina.

Middle cerebral artery: The largest branch of the internal carotid artery, supplying the lateral surface of the cerebral hemisphere.

Vertebrobasilar system: Paired vertebral arteries and their basilar fusion, providing blood to the brainstem, cerebellum and posterior cerebrum.

Rete mirabile: A network of small arterial vessels that replaces the internal carotid in some species, facilitating heat exchange and pressure regulation.

Selective brain cooling: A physiological process by which arterial blood destined for the brain is cooled via counter-current exchange before perfusion.

References

1. Comprehensive mapping of the exterior architecture of the dromedary camel brain. Scientific Reports (2024).
2. Mapping the branching pattern of the middle cerebral artery in the camel (Camelus dromedarius): a comprehensive anatomical analysis. Frontiers in Veterinary Science (2023).
3. Vertebrobasilar Contribution to Cerebral Arterial System of Dromedary Camels (Camelus dromedarius). Frontiers in Veterinary Science (2021).
4. Body water conservation through selective brain cooling by the carotid rete: a physiological feature for surviving climate change?. Conservation Physiology (2017).
5. Selective Brain Cooling Reduces Water Turnover in Dehydrated Sheep. PLOS ONE (2015).