The State of Contraction of Vascular Smooth Muscle Is Determined

question 2

Multiple Choice

The state of contraction of vascular smooth muscle is determined most directly by the

• A) Occupancy of receptors for vasoconstrictors or vasodilators
• B) State of phosphorylation of myosin light chains
• C) Activation of acto-myosin cross bridges by Ca²⁺
• D) Mem brane potential of the sm ooth m uscle cells
• E) Electrical coupling of smooth muscle cells through gap junctions

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A virus known as Human Immunodeficiency Virus targets the immune system and may result in Acquired Immunodeficiency Syndrome (AIDS) without proper treatment.