Question 1

Which of the following best describes the primary function of the lymphatic system?

Accepted Answer

To collect excess tissue fluid and return it to circulation

Question 2

A patient presents with swelling in the neck, axillae, and groin. Which anatomical feature explains the presence of swelling in these regions?

Accepted Answer

These areas contain high numbers of lymph nodes

Question 3

Which of the following is the correct definition of phagocytosis?

Accepted Answer

A process in which white blood cells engulf and destroy microorganisms, cell debris, and blood cells that are damaged, old, or abnormal

Question 4

A laboratory test measures the number of CD4 lymphocytes in a patient's blood. This test is most useful for monitoring which condition?

Accepted Answer

Progression of HIV infection

Question 5

Which combining form is correctly matched with its definition?

Accepted Answer

splen/o — spleen

Question 6

A patient is diagnosed with a metastasized tumor. What does 'metastasized' mean in this context?

Accepted Answer

The tumor has spread to another part of the body

Question 7

Which organ is responsible for producing T lymphocytes and plays a role in protecting the body from cancer?

Accepted Answer

Thymus gland

Question 8

A physician orders an enzyme immunosorbent assay (EIA) for a patient. What is the primary purpose of this test?

Accepted Answer

To identify the presence of antigens, antibodies, or other substances in the blood

Question 9

Which of the following best describes the function of the spleen?

Accepted Answer

Creates white blood cells and antibodies; acts as a storage container for blood and platelets

Question 10

A patient is suspected of having infectious mononucleosis. Which rapid test would be most appropriate to screen for this condition?

Accepted Answer

Monospot (heterophil) test

Question 11

Which of the following is a correct pairing of a combining form and its meaning?

Accepted Answer

vas/o — vessel

Question 12

A patient with a suspected allergy undergoes a scratch test. What is the principle behind this diagnostic procedure?

Accepted Answer

An allergen is placed on a scratched area of the skin, and the response is noted

Question 13

Which of the following best describes lymph?

Accepted Answer

A clear, colorless, alkaline tissue fluid made up mostly of water, along with some protein, fats, white blood cells, and urea

Question 14

Which of the following is the correct definition of phagocytes?

Accepted Answer

White blood cells that clean debris from lymph

Question 15

A patient’s blood test shows an elevated erythrocyte sedimentation rate (ESR). What does this indicate?

Accepted Answer

Presence of acute or chronic inflammation

Question 16

Which combining form means 'immune'?

Accepted Answer

immun/o

Question 17

Which of the following best describes the role of T lymphocytes?

Accepted Answer

White blood cells that are able to seek out and destroy abnormal cells

Question 18

A patient’s lymph enters the circulatory system and combines with blood at which anatomical location?

Accepted Answer

Superior vena cava

Question 19

Which combining form is correctly matched with its definition?

Accepted Answer

bacteri/o — bacteria

Question 20

A patient with HIV has a rising viral load. What does this indicate about the progression of their disease?

Accepted Answer

The infection is worsening

Lymphatic and Immune System: Key Terms, Structures, and Diagnostic Tests

Study Guide - Practice Questions