Chapter 21

Question 1

Which of the following is a primary function of the lymphatic system?

Answer 1

Drains excess interstitial fluid from tissues

Question 2

Which of the following is the correct order of lymph flow in the body?

Answer 2

Lymphatic capillaries - Lymphatic vessels → Lymphatic trunks →
Lymphatic ducts

Question 3

Which lymphatic duct drains lymph from the left upper limb and the entire area below the diaphragm?

Answer 3

Thoracic duct

Question 4

The process of phagocytosis involves which of the following cells?

Answer 4

Neutrophils

Question 5

Which of the following is a feature of the adaptive immune response?

Answer 5

It leads to immunological memory

Question 6

The thymus is important for the maturation of which type of lymphocyte?

Answer 6

T cells

Question 7

Which type of T cell directly destroys infected cells by inducing apoptosis?

Answer 7

Cytotoxic T cells

Question 8

Which immune cell type is responsible for producing antibodies?

Answer 8

B cells

Question 9

Which molecule on antigen-presenting cells (APCs) is involved in presenting foreign antigens to T cells?

Answer 9

Major histocompatibility complex (MHC)

Question 10

What is the primary function of the spleen?

Answer 10

Recycling of old red blood cells

Question 11

The process by which the lymphatic system absorbs fats from the digestive system is called

Answer 11

absorption of dietary lipids

Question 12

When the lymphatic system fails to drain excess interstitial fluid, it can result in a condition known as

Answer 12

Edema

Question 13

The lymphatic system includes lymphatic vessels, lymphatic organs, and ___________that help carry out immune responses.

Answer 13

Lymphocytes

Question 14

The primary cells involved in innate immune responses, such as engulfing and digesting pathogens, are called

Answer 14

Phagocytes

Question 15

Lymphocytes that coordinate adaptive immune responses and recognize specific antigens are called

Answer 15

T cells and B cells

Question 16

The immune response that involves the activation of helper T cells and cytotoxic T cells is known as the ___________ response.

Answer 16

cellular (cell-mediated)

Question 17

The ________ is an organ that stores platelets and helps fight blood-borne pathogens.

Answer 17

Spleen

Question 18

The adaptive immune response involves the production of _________, which help identify and neutralize foreign antigens.

Answer 18

Antibodies

Question 19

T cells require antigen-presenting cells to process and present antigens using
__________ molecules.

Answer 19

major histocompatibility complex (MHC)

Question 20

The second exposure to a pathogen leads to a faster immune response due to the presence of _________ cells.

Answer 20

Memory

Question 21

Lymph from the right thigh would return to blood through the:

Answer 21

Thoracic duct

Question 22

Which of the following cells are phagocytes?

Answer 22

Monocytes