A Naïve T-Cell Refers to a T Cell That

question 41

Multiple Choice

A naïve T-cell refers to a T cell that

• A)does not express CD4⁺ or CD8⁺.
• B)has not left the bone marrow.
• C)has not yet encountered an antigen.
• D)is not mature.
• E)resides in the thymus.

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Definitions:

Involuntary

Actions or reactions that occur without conscious control, such as the heartbeat or reflexes.

Nonstriated

Referring to muscle tissue that lacks the visible striations or stripes found in skeletal and cardiac muscle, typically associated with smooth muscles.

Cardiac Muscle

Specialized muscle tissue of the heart, responsible for its contraction and thus pumping blood throughout the body.

Skeletal Muscle

A type of striated muscle tissue that is attached to bones and is involved in the movement of the skeleton and voluntary movements.