A Researcher Identifies a Group of Malignant Epithelial Cells in the Sigmoid

question 53

Multiple Choice

A researcher identifies a group of malignant epithelial cells in the sigmoid colon that have decreased their surface expression of MHC class I antigen.  Which of the following immune effector cell types is most likely to kill the transformed epithelial cells?

• A)Neutrophils
• B)Macrophages
• C)Dendritic cells
• D)CD4+ T lymphocytes
• E)Plasma cells
• F)Natural killer cells

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Definitions:

Squatting Position

A posture where one lowers the body into a crouching stance, resting on the balls of the feet with the knees fully bent.

Semi-Seated Position

A posture where an individual is partially sitting, with their buttocks supported but not in a fully seated or reclined position.

Medical Model

A model of illness that treats mental disorders as a physical disease, implying that they can be treated through medical intervention.

Drugged

The condition of having one's physical or mental state altered by taking drugs, typically without the person's consent or in a way that is harmful.