What is the role of Tcytotoxic cells?

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What is the role of T-cytotoxic cells?

A. Produce antibodies B. Kill infected cells C. Activate B cells D. Phagocytose pathogens

Correct Answer: B

Rationale: T-cytotoxic cells kill infected cells; antibodies are B cells, activation is T-helper, phagocytosis is macrophages.

The lymphatic fluid is

A. Brownish B. Pinkish C. Colorless D. Bluish

Correct Answer: C

Rationale: Lymphatic fluid is typically colorless, lacking the red blood cells that give blood its color.

is irregular branched with B-lymph, contineous with Cortical follicle

A. Para Cortex B. secondary Nodule C. Primary Nodule D. medullary Cord

Correct Answer: D

Rationale: Medullary cords are irregular, branched, B-lymphocyte-rich, and continuous with cortical follicles.

is aggregation of lymph tissue with incomplete capsule

A. tonsil B. lymph Node C. spleen D. thymus

Correct Answer: A

Rationale: Tonsils are lymphoid tissue aggregates with incomplete capsules.

Which two of the following are typically necessary to stimulate B-Lymphocyte to divide and differentiate?

A. T-suppressor and an antibody B. A helper T-lymphocyte and an antigen C. A cytokine and T-cytotoxic D. A memory T-lymphocyte and a cytokine

Correct Answer: B

Rationale: B-lymphocytes require a helper T-lymphocyte and an antigen for activation and differentiation.

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