What Is the Mechanism by Which OnabotulinumtoxinA (BOTOX)decreases Muscle Activation

question 7

Multiple Choice

What is the mechanism by which onabotulinumtoxinA (BOTOX) decreases muscle activation?

• A)Blocks the binding of acetylcholine (ACh)to the motor end plate.
• B)Inhibits the binding of myosin to active sites on actin.
• C)Blocks the release of Ca⁺² from the sarcoplasmic reticulum.
• D)Inhibits the release of ACh from the presynaptic terminal.
• E)None of the above occurs.

---

Definitions:

Allowance for Doubtful Accounts

A contra-asset account that estimates the portion of accounts receivable which may not be collectible.

Adjusted

Changed or modified to reflect a more accurate valuation or account of a particular item or financial record.

Accounting Period

The span of time at the end of which a company or organization reports its financial performance and position; typically monthly, quarterly, or annually.

Net Realizable Value

The estimated selling price of goods, minus the costs of their completion and the costs necessary to make the sale.