An Example of Electromechanical Coupling in Smooth M Uscle Is

question 6

Multiple Choice

An example of electromechanical coupling in smooth m uscle is activation of contraction by

• A) Release of Ca₂+ via G
• B) Increased cytosolic [Ca₂+] through voltage-gated Ca₂+ cha nn els
• C) Activation of protein phosphatase via G -protein coupled receptors
• D) Ca₂+ release through RyR
• E) Ca₂+ uptake into the SR m ediated by phospholamban phosphorylation

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Definitions:

Preexisting Duty Rule

A legal doctrine stating that a promise to perform something the promisor is already legally obligated to do is not consideration for a new contract.

Adequacy of Consideration

Pertains to the fairness of the value exchanged in a contractual agreement, often examined in legal disputes over contract validity.

Legally Sufficient

Having the requisite form, substance, and detail to comply with the law and withstand legal scrutiny.

Past Consideration

Consideration for a contract that has already been provided before the agreement is made, not valid as consideration in most legal systems.