Cytotoxic Tcells destroy their target cells by rel

ATI RN

ATI RN Test Bank

Cytotoxic T-cells destroy their target cells by releasing a substance that affects

A. cell membranes B. lysosomes C. ribosomes D. DNA molecules

Correct Answer: A

Rationale: Cytotoxic T cells release perforins/granzymes, disrupting target cell membranes.

Which lymphatic organ is responsible for filtering and monitoring the blood for foreign substances, including bacteria and viruses?

A. Thymus B. Spleen C. Tonsils D. Lymph nodes

Correct Answer: B

Rationale: The spleen filters blood for pathogens and debris.

Monocytes differentiate into which kind of phagocytic cells?

A. Neutrophil B. B cell C. Macrophage D. T cell

Correct Answer: C

Rationale: Monocytes become macrophages, which are phagocytic.

Identify the outward signs of inflammation that results from increased capillary permeability.

A. Heat and redness B. Heat and pain C. Redness and swelling D. Swelling and pain

Correct Answer: D

Rationale: Increased permeability leads to swelling and pain.

Identify the specific defense cell that destroys virus-infected cells and cancerous cells.

A. B lymphocytes B. Cytotoxic T cells C. Helper T cells D. NK cells

Correct Answer: B

Rationale: Cytotoxic T cells target infected/cancerous cells.

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