Question 1

Which of the following is NOT a function of the lymphatic system?

Accepted Answer

Producing red blood cells in the bone marrow

Question 2

Which property of lymphatic vessels ensures that lymph moves in one direction toward the heart?

Accepted Answer

One-way valve system

Question 3

A patient has swelling in their lower limbs due to blocked lymphatic vessels. Which mechanism is most likely impaired?

Accepted Answer

One-way flow of lymph toward the heart

Question 4

Which lymphoid organ is the primary site for T lymphocyte maturation?

Accepted Answer

Thymus

Question 5

Which of the following best describes the difference between humoral and cellular immunity?

Accepted Answer

Humoral immunity is provided by antibodies, while cellular immunity is provided by lymphocytes acting directly against targets.

Question 6

Which of the following is a correct sequence of events during the inflammatory response?

Accepted Answer

Redness, heat, swelling, pain

Question 7

A person receives antibodies from their mother through breast milk. This is an example of:

Accepted Answer

Naturally acquired passive immunity

Question 8

Which cell type is responsible for antibody production in the humoral immune response?

Accepted Answer

Plasma cells

Question 9

Which of the following is TRUE regarding adaptive immunity?

Accepted Answer

It involves lymphocytes and is specific to particular antigens

Question 10

Which of the following best explains why fever can be beneficial during infection?

Accepted Answer

Fever inhibits the release of iron and zinc from the liver and spleen, depriving bacteria of essential nutrients

Question 11

Which of the following is a function of the spleen?

Accepted Answer

Site of lymphocyte proliferation and immune surveillance

Question 12

Which of the following is a characteristic of natural killer (NK) cells?

Accepted Answer

They induce apoptosis in virus-infected and cancer cells

Question 13

Which of the following is returned to the blood by the lymphatic system?

Accepted Answer

Water, blood cells, and proteins

Question 14

Which of the following best describes the process of opsonization?

Accepted Answer

Coating a pathogen with complement proteins or antibodies to enhance phagocytosis

Question 15

A patient is exposed to a virus and develops immunity after recovering. Which type of immunity is this?

Accepted Answer

Naturally acquired active immunity

Question 16

Which equation best represents the relationship between lymph flow ($$Q_{lymph}$$), pressure gradient ($$\Delta P$$), and resistance ($$R) in $$lymphatic vessels?

Accepted Answer

$$Q_{lymph} = \frac{\Delta P}{R}$$

Question 17

Which lymphoid organ is most likely to be enlarged during a throat infection?

Accepted Answer

Tonsils

Question 18

Which of the following is a correct statement about B and T lymphocytes?

Accepted Answer

B lymphocytes mature in the bone marrow, while T lymphocytes mature in the thymus

Question 19

Which of the following is a real-life example of artificially acquired active immunity?

Accepted Answer

Receiving a vaccine containing dead or attenuated pathogens

Chapters 20-21: The Lymphatic System and Immunity – Structure, Function, and Immune Responses

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