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A newborn infant has immunity from their mother. Which type of immunity is it?

A.

Naturally acquired active immunity

B.

Artificially acquired passive immunity

C.

Naturally acquired passive immunity

D.

Artificially acquired active immunity

Answer and Explanation

The Correct Answer is C

A. Naturally acquired active immunity

  This results from infection and the body’s own immune response—not applicable to newborns.

B. Artificially acquired passive immunity

  This comes from injection of antibodies (e.g., immunoglobulins)—not from the mother.

C. Naturally acquired passive immunity

    This is passed from mother to child through the placenta (IgG antibodies) and via breast milk (IgA).

D. Artificially acquired active immunity

  This comes from vaccines that stimulate the body to produce its own antibodies.


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Related Questions

Correct Answer is D

Explanation

A. Defense mechanism:

This is a general term, not specific to the immune system's ability to protect.

B. Protection:

Protection is a vague term and not the technical term used in this context.

C. Infection:

Infection refers to the invasion and multiplication of pathogens, not the body’s ability to fight them.

D. Immunity:

Immunity refers to the body’s specific ability to recognize, resist, and eliminate pathogens and foreign substances.

Correct Answer is D

Explanation

A. Spleen

The spleen filters blood, but it's not the first common site of breast cancer metastasis.

B. Cervical lymph nodes

These are located in the neck and are not primary drainage sites for the breast.

C. Inguinal lymph nodes

These are in the groin and relate to drainage from the lower body, not the breast.

D. Axillary lymph nodes

These are located in the armpits and are the primary drainage nodes for breast tissue, making them the first site of metastasis.

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