calculated blood vessel maximum contractile force measurement receptor-dependent blood vessel maximum contractile force to receptor-independent blood vessel maximum contractile force ratio 2013-06-20T14:14:00Z A calculated measurement in which the receptor-dependent maximum contractile force of a blood vessel is divided by the receptor-independent maximum contractile force of a blood vessel and presented as a ratio, fraction, quotient or percentage. The maximum contractile force of a blood vessel is the highest achievable amount of energy produced by the active reduction in the diameter of a blood vessel, any one of the network of muscular tubes that carry blood through the body, resulting from a contraction of the muscular wall of the vessel. Receptor-dependent refers to such a contraction which is instigated by the activation of a receptor, a molecule on the surface or within a cell that recognizes and binds with specific molecules, producing a specific effect. Receptor-independent denotes such a contraction that does not involve the action of a receptor. CMO:0001656 JSmith VT:0000198 blood vessel receptor-dependent contractility to receptor-independent contractility ratio clinical_measurement_ontology receptor-dependent blood vessel maximum contractile force exoressed as a percentage of receptor-independent blood vessel maximum contractile force