Which Events Involved in Muscle Cell Contraction Are Sequenced in the Correct

question 60

Multiple Choice

Which events involved in muscle cell contraction are sequenced in the correct order
1) Sodium channels open, allowing sodium to flow in.
2) Impulse reaches axon's synaptic knob.
3) ACh binds to receptors on sarcolemma.
4) Synaptic vesicles fuse with neuron's membrane and release ACh via exocytosis.
5) If enough sodium moves into the muscle cell, an impulse (action potential) develops.

• A)1, 2, 3, 4, 5
• B)2, 1, 3, 4, 5
• C)2, 4, 3, 1, 5
• D)3, 4, 5, 1, 2

---

Definitions:

New Customer

A person who has never previously purchased or used a product or service from a business.

Complement

In probability, it refers to the event not occurring, or the subset of outcomes that are not part of the event of interest.

Complement

In probability theory, the event consisting of all outcomes not in a given event, typically leading to a sum of probabilities equal to one.

Probability

The quantification of an event's likelihood to occur, represented as a number from 0 to 1.