Lymphocytes are of two types, they are

ATI RN

ATI RN Test Bank

A. T-cells and erythrocytes B. Erythrocytes and Platelets C. T-cells and Platelets D. T-cells and B-cells

Correct Answer: D

Rationale: Lymphocytes include T and B cells, key to adaptive immunity, not erythrocytes or platelets.

The lymphatic system plays a significant role in maintaining tissue fluid balance. This function helps prevent:

A. Dehydration B. Edema (swelling) C. Anemia D. High blood pressure

Correct Answer: B

Rationale: Returning fluid prevents edema (swelling) from fluid buildup.

B lymphocytes are produced in the __________ and mature in the ___________.

A. bone marrow; bone marrow B. bone marrow; thymus gland C. lymph nodes; thymus gland D. thymus gland; spleen

Correct Answer: A

Rationale: B cells are produced and mature in the bone marrow.

Identify the cells responsible for specific immunity.

A. B lymphocytes and neutrophils B. T lymphocytes and monocytes C. B lymphocytes and T lymphocytes D. Neutrophils and phagocytes

Correct Answer: C

Rationale: B and T lymphocytes drive specific immunity.

A retrovirus has what kind of genetic material?

A. r-DNA B. RNA C. d-RNA D. c-DNA

Correct Answer: B

Rationale: Retroviruses (e.g., HIV) have RNA as genetic material.

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