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Which of the following are described as partially encapsulated lymph nodes located in the throat area?

A.

Tonsils

B.

Thyroid gland

C.

Thymus gland

D.

Spleen

Answer and Explanation

The Correct Answer is A

A. Tonsils:

   Tonsils are lymphatic tissues located in the pharyngeal region; they are partially encapsulated and help trap airborne or ingested pathogens.

B. Thyroid gland:

   The thyroid is an endocrine gland that regulates metabolism, not part of the lymphatic system.

C. Thymus gland:

   The thymus is fully encapsulated and located in the mediastinum; it matures T cells.

D. Spleen:

   The spleen is a fully encapsulated lymphoid organ located in the left upper quadrant of the abdomen.


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Related Questions

Correct Answer is B

Explanation

A. Naturally acquired passive immunity

Passive immunity occurs when antibodies are transferred (e.g., from mother to baby); it does not involve the person’s immune system actively responding.

B. Naturally acquired active immunity

This occurs when a person is exposed to a pathogen, like the measles virus, and their body mounts an immune response, producing long-lasting immunity.

C. Artificially acquired active immunity

This is obtained through vaccination, not from infection.

D. Artificially acquired passive immunity

This refers to receiving antibodies (e.g., through injection of immune globulin), not through natural infection.

Correct Answer is B

Explanation

A. Movement of blood through the body:

This is the function of the cardiovascular system, not the lymphatic system.

B. Decreases the spread of disease:

The lymphatic system helps trap and destroy pathogens through lymph nodes and the immune response, reducing the spread of infection.

C. Control hormone levels:

Hormone levels are regulated by the endocrine system.

D. Control electrolyte levels:

Electrolyte balance is primarily maintained by the kidneys and endocrine organs like the adrenal glands.

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