Deck 35: The Lymphatic System and Immune Response

Question 1

In the tonsils, these structures trap bacteria and other foreign material.

A) germinal centers
B) crypts
C) villi
D) follicles

Answer 1

B

Question 2

The functions of the lymph system include all of the following except .

A) returning tissue fluid to the systemic circulatory system
B) protecting the body from foreign substances
C) filtering the lymph fluid
D) removing worn out erythrocytes from the system

Answer 2

D

Question 3

The right lymphatic duct drains .

A) the right side of the head and thorax, the entire abdomen, the right upper extremity, and both lower extremities
B) the right side of the body
C) the right side of the head and thorax, and the right upper extremity
D) the head, thorax, and right upper extremity

Answer 3

C

Question 4

Germinal centers in the cortex of lymph nodes contain primarily .

A) macrophages
B) B cells
C) support cells
D) T cells

Question 5

What causes the flow of lymph to slow within lymph nodes?

A) Afferent vessels contract, restricting lymph flow.
B) There are more afferent vessels than efferent vessels.
C) Valves at the exit site regulate lymph flow, allowing only small amounts out at a time.
D) Afferent vessels are much larger in diameter than efferent vessels.

Question 6

The lymphatic system consists of lymphatic vessels, lymphatic tissue, lymph nodes, and lymphoid organs such as .

A) spleen, and thymus
B) oropharynx, and tonsils
C) thyroid, and thymus
D) pancreas, and spleen

Question 7

Antibodies _.

A) each recognize several different antigens
B) bind to an antigen and destroy it by phagocytosis
C) are proteins composed of heavy chains and light chains
D) provide for cellular immunity in the body

Question 8

The pulp is responsible for the immune functions of the spleen.

A) splenic
B) white
C) red
D) cryptic

Question 9

Lymph in the cisterna chyli differs in composition from lymph in the general lymphatic stream in that it contains more _ _.

A) protein
B) ions
C) fat
D) nucleic acids

Question 10

Lymph vessels resemble these vessels of the systemic circulation.

A) arterioles
B) veins
C) arteries
D) capillaries

Question 11

These cells recognize antigens and initiate the immune response.

A) neutrophils
B) neutrophils, monocytes, and lymphocytes
C) monocytes
D) lymphocytes

Question 12

The function of B cells in the immune response is .

A) to attack virus-infected cells
B) to attack tumor cells
C) to attack bacteria
D) to produce plasma cells that make antibodies

Question 13

This medullary region of the lymph node contains primarily _.

A) macrophages
B) support cells
C) T cells
D) B cells

Question 14

What is not true about antibodies?

A) They are found in plasma and other body secretions.
B) They bind to a single, specific antigen.
C) They are produced by plasma cells.
D) They are cells.

Question 15

B cells provide this kind of immunity.

A) clonal
B) humoral
C) antigenic
D) cellular

Question 16

Although all of the organs below can raise an immune response, only this one filters the lymph.

A) tonsils
B) lymph nodes
C) spleen

Question 17

The property of immunological memory is _.

A) the inability to recognize one's own tissue as 'self,' resulting in an attack on one's own cells
B) the ability to recognize one's own tissue cells as 'self'
C) the ability to recognize and mount an attack on an antigen that was previously encountered
D) the ability to distinguish between closely related antigens

Question 18

Select the mechanism below that is not involved in the flow of lymph through the lymphatic vessels.

A) pressure changes in the thorax that occur during breathing
B) milking action of skeletal muscles
C) pumping action of the heart

Question 19

Antigens that can provoke an immune response include _.

A) foreign proteins, polysaccharides, and small molecules, called haptens that link to our own body proteins
B) foreign proteins
C) small molecules, called haptens that link to our own body proteins
D) polysaccharides

Question 20

The receives lymph from the left half of the body and part of the right side as well.

A) right lymphatic duct
B) thoracic duct
C) cisterna chili
D) right subclavian vein

Question 21

This region of an antibody forms the antigen-binding site that binds a specific antigenic determinant of an antigen.

A) variable portion of heavy and light chains
B) light chain only
C) heavy chain only
D) constant portion of heavy and light chains

Question 22

In the Ouchterlony test, where will a precipitin line form when bovine serum albumin is mixed with the antibodies for horse albumin, bovine albumin, and swine albumin?

A) between the wells for bovine albumin and antibodies for horse albumin
B) between the wells for bovine albumin and antibodies for bovine albumin
C) between the wells for bovine albumin and antibodies for horse albumin, and between the wells for bovine albumin and antibodies for swine albumin
D) between the wells for bovine albumin and antibodies for swine albumin

Question 23

In the Ouchterlony test, if an unknown antigen contains only swine serum albumin, how many precipitin lines will form between it and the wells of antibodies for horse, bovine, and swine albumin?

A) 1
B) 2
C) 3
D) none