Suppose One Is Performing a 2-Back Test Where the Target

question 42

Multiple Choice

Suppose one is performing a 2-back test where the target is the number 9. What number would one have to report if presented with the sequence
2 8 5 4 7 9 1 6 3?

• A) 4
• B) 6
• C) 7
• D) 9

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Definitions:

Excitation-Contraction

A biological mechanism that describes the process of muscle fiber contraction triggered by electrical impulses.

T Tubules

Tube-like structures in muscle cells that play a role in transmitting electrical impulses from the cell surface to the interior, triggering muscle contraction.

Sarcolemma

The fine transparent tubular sheath which envelops the fibers of skeletal muscles.

Sarcoplasmic Reticulum

A specialized type of endoplasmic reticulum in muscle cells that stores and releases calcium ions.