Cerebral blood vessel

Cerebral blood vessels constitute the specialized network of arteries, capillaries, and veins that provide the brain with oxygen and nutrients while removing metabolic waste [1]. These vessels are structurally unique due to the blood-brain barrier (BBB), which is composed of endothelial cells with tight junctions, pericytes, and astrocyte end-feet, serving to protect the neural environment from systemic toxins and maintain ionic homeostasis [3]. While not a single molecular entity, the cerebral vasculature serves as a critical site for therapeutic intervention in numerous neurological conditions, most notably in the management of acute ischemic stroke and post-hemorrhagic vasospasm [2]. Drugs like nimodipine are utilized to prevent delayed cerebral ischemia by targeting vascular smooth muscle, whereas thrombolytics like alteplase target fibrin within the vessel lumen to restore perfusion [1, 2]. The physiological regulation of these vessels, including myogenic and neurogenic autoregulation, is essential for maintaining stable cerebral blood flow despite fluctuations in systemic blood pressure [1]. (Citations: [1] StatPearls, Anatomy, Head and Neck, Cerebral Arteries; [2] NIH/NINDS Stroke Information; [3] Frontiers in Physiology, The Blood-Brain Barrier).

Other names

Brain vasculatureCerebral vasculatureIntracranial blood vesselsCerebral arteriesCerebral veins

Pharmacological agents do not target the vessel as a whole but interact with specific molecular targets within the vascular wall, such as L-type voltage-gated calcium channels (e.g., nimodipine) to cause vasodilation, serotonin 5-HT1B/1D receptors (e.g., sumatriptan) to induce vasoconstriction, or plasminogen (e.g., alteplase) to facilitate thrombolysis within the lumen.