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Thymosin:

Is secreted by all lymph nodes

Is the fluid within the lymph nodes

Is a hormone

Plays no known role

Answer and Explanation

The Correct Answer is C

A. Is secreted by all lymph nodes:

Thymosin is not produced by lymph nodes; it is secreted by the thymus gland.

B. Is the fluid within the lymph nodes:

Lymph fluid circulates within lymph nodes, not thymosin.

C. Is a hormone:

Thymosin is a hormone secreted by the thymus that plays a role in the development and differentiation of T lymphocytes.

D. Plays no known role:

Thymosin has an important role in immune system development.

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Correct Answer is B

Explanation

A. The virus affects the red blood cells

HIV primarily affects CD4+ T-helper white blood cells, not red blood cells.

B. The virus affects the white blood cells

HIV destroys CD4+ T-cells, weakening the immune response, leading to immunodeficiency.

C. The virus affects the platelets

Platelets are involved in clotting, not in the immune deficiency caused by HIV.

D. The virus affects the liver

Although medications for HIV may affect the liver, HIV itself targets the immune system, not liver cells directly.

A. Inguinal B. Cervical C. Thoracic D. Pelvic

Correct Answer is B

Explanation

A. Inguinal

These drain the lower extremities and groin area, not the head and neck.

B. Cervical

The cervical lymph nodes are located in the neck and drain the head and neck region.

C. Thoracic

Thoracic lymph nodes are found in the chest and drain the thoracic cavity.

D. Pelvic

These are located in the pelvis and drain pelvic organs.

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Thymosin:

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Why is HIV/AIDS considered an immune deficiency disease?

Correct Answer is B

Explanation

What is the name of the lymph nodes that drain the head and neck region?

Correct Answer is B

Explanation

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Which of the following is second line of defense?

Which body system is considered the MAIN first line of defense against invasion of the body from foreign objects?

Which of the following best describes an infection?

Which statement is TRUE concerning bacteria?

B and T cells are:

A client comes to the physician office a few days after the client cut themselves with a knife while cooking. The area of the cut is having greenish drainage, is warm to the touch, swollen, and red. They are afebrile. The client MOST likely has: