If All of the Ca²⁺ Within a Muscle Fiber Was

question 180

Multiple Choice

If all of the Ca²⁺ within a muscle fiber was removed, which of the following could still occur?

• A) The heads of the myosin myofilaments would bind to G-actin to form cross-bridges.
• B) An action potential that was produced at the neuromuscular junction would be propagated along the sarcolemma.
• C) The troponin molecules bound to G actin molecules would be released, causing tropomyosin to move.
• D) The heads of the myosin molecules would return to their resting position, and the recovery stroke would occur.

---

Definitions:

Self-disclosure

The act of revealing personal information about oneself to others, fostering intimacy and trust in relationships.

Communication Process

The series of actions or steps taken to successfully convey information or messages from a sender to a receiver.

Effective Apology

An apology that acknowledges wrongdoing, expresses remorse, and offers a genuine attempt to make amends.

Rumination

The process of continuously thinking about the same thoughts, often negative, which can affect mental health.