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The spleen, thymus gland, tonsils, and lymph nodes are:

A.

Concerned only with destroying RBCs

B.

Confined to the thoracic cavity

C.

Lymphoid organs

D.

Concerned only with phagocytosis

Answer and Explanation

The Correct Answer is C

A. Concerned only with destroying RBCs

  Only the spleen is partly involved in RBC destruction-this doesn’t apply to all listed organs.

B. Confined to the thoracic cavity

  These organs are located in different parts of the body-e.g., spleen in the abdomen, lymph nodes throughout the body.

C. Lymphoid organs

    These are all components of the lymphatic/immune system, involved in immune surveillance and lymphocyte production.

D. Concerned only with phagocytosis

  While some have phagocytic activity (e.g., macrophages in lymph nodes), their functions go far beyond phagocytosis (e.g., immune cell activation).


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Related Questions

Correct Answer is B

Explanation

A. Advising the patient to avoid all physical activity to prevent strain:

Complete avoidance of activity can lead to stiffness and muscle atrophy. Gentle activity is encouraged.

B. Encouraging the use of compression garments on the affected arm:

Compression garments help prevent or reduce lymphedema by promoting lymph drainage in the affected arm.

C. Instructing the patient to apply heat to the affected arm to reduce swelling:

Heat can exacerbate swelling and inflammation and should be avoided.

D. Recommending the patient to keep the arm elevated at all times:

While occasional elevation may help, constant elevation is impractical and unnecessary. It is not the primary prevention strategy.

Correct Answer is B

Explanation

A. Skin:

The skin is part of the first line of defense, acting as a physical barrier.

B. Phagocytosis:

Phagocytosis, carried out by white blood cells like macrophages and neutrophils, is a component of the second line of defense, which includes non-specific internal immune responses.

C. Coughing:

Coughing is part of the first line of defense-mechanical clearance.

D. Sneezing:

Like coughing, sneezing is a mechanical defense included in the first line.

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