$$35\ \text{mm Hg} - 22\ \text{mm Hg} = 13\ \text{mm Hg}$$

Question 1

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

Accepted Answer

Produce red blood cells

Question 2

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

Accepted Answer

Drainage of interstitial fluid

Question 3

Which lymphatic organ is responsible for the maturation of T lymphocytes and is most active in children?

Accepted Answer

Thymus

Question 4

Which of the following best describes the role of secondary lymphoid organs?

Accepted Answer

Where mature lymphocytes become activated and initiate immune responses

Question 5

A person receives a vaccine and develops immunity. Which type of adaptive immunity is this?

Accepted Answer

Artificially acquired active immunity

Question 6

Which of the following is TRUE regarding lymphatic capillaries?

Accepted Answer

They are blind-ended and allow fluid to enter but not exit

Question 7

Which statement best explains the difference between cell-mediated and antibody-mediated immunity?

Accepted Answer

Cell-mediated immunity targets infected cells directly, while antibody-mediated immunity targets pathogens in body fluids

Question 8

Which of the following is a correct sequence for the process of phagocytosis?

Accepted Answer

Chemotaxis, adherence, ingestion

Question 9

A newborn is protected from certain infections due to antibodies received from the mother through breast milk. This is an example of:

Accepted Answer

Naturally acquired passive immunity

Question 10

Which of the following best describes the role of MHC class I molecules in antigen processing?

Accepted Answer

They present endogenous antigens to cytotoxic T cells

Question 11

If the hydrostatic pressure at the arterial end of a capillary is 35 mm Hg and the osmotic pressure is 22 mm Hg, what is the net filtration pressure?

Accepted Answer

$$35\ 	ext{mm Hg} - 22\ 	ext{mm Hg} = 13\ 	ext{mm Hg}$$

Question 12

Which of the following is a function of the spleen?

Accepted Answer

Filtering blood and removing pathogens and old erythrocytes

Question 13

Which immune cells are responsible for killing virus-infected cells by releasing perforin and granzymes?

Accepted Answer

Cytotoxic T cells

Question 14

Which of the following is a chemical barrier in innate immunity?

Accepted Answer

Saliva, sweat, and gastric juices

Question 15

Which lymphatic trunk drains lymph from the right arm and right side of the head and thorax?

Accepted Answer

Right lymphatic duct

Question 16

Which process allows B cells to produce antibodies specific to an invading pathogen?

Accepted Answer

Clonal selection

Question 17

Which of the following is TRUE about immunological memory?

Accepted Answer

It allows for a faster and stronger response upon re-exposure to the same antigen

Question 18

A patient is exposed to a virus. Which immune response is most likely to be activated first?

Accepted Answer

Innate immunity

Question 19

Which of the following is a correct description of complement proteins?

Accepted Answer

They are naturally present in plasma and cell membranes and enhance immune function

Question 20

Which of the following is a mechanical barrier in innate immunity?

Accepted Answer

Vomiting and vaginal excretions

Ch. 20 Immunity: Lymphatic System and Immune Responses

Study Guide - Practice Questions