Linked from

The 14 pages that link to Vascular smooth muscle, each with the reason it gives.

• VasoconstrictionBroader topic: Its contraction directly narrows the vessel during vasoconstriction.

• VasodilationBroader topic: Its relaxation directly produces vasodilation.

• EndotheliumCompared with: Unlike the luminal endothelium, these cells form a deeper layer that constricts or relaxes vessels.

• Endothelial dysfunctionRelated: Endothelial signals regulate its contraction and relaxation.

• Endothelial cellRelated: Endothelial signals regulate the contraction of this neighboring vessel-wall layer.

• Calcium channel blockerRelated: Blocking calcium entry relaxes this muscle and widens arteries.

• PericyteCompared with: Both cell types influence vessel caliber, but pericytes occupy smaller vessels and have distinct anatomy.

• VasopressorRelated: Vasopressor signals cause this muscle to contract, narrowing vessels.

• AmlodipineBroader topic: This is amlodipine’s principal site of action in blood-pressure reduction.

• ArterioleRelated: Its contraction narrows arterioles; relaxation widens them.

• Tunica mediaBroader topic: These cells form the tunica media’s main contractile component.

• VerapamilRelated: Reduced calcium entry relaxes this muscle, lowering arterial resistance.

• NifedipineBroader topic: Relaxation of this tissue is the immediate basis of nifedipine’s arterial dilation.

• HydralazineNarrower topic: Hydralazine lowers vascular resistance by relaxing this tissue, especially in small arteries.