Chapter 22

Question 1

contains a large number of macrophages

Answer 1

Lymph Nodes

Question 2

contains a large number of lymphocytes

Answer 2

Lymph Nodes

Question 3

Largest lymphatic organ

Answer 3

spleen

Question 4

located within the mediastinum

Answer 4

thymus

Question 5

soft, two lobed structure enclosed in a connective tissue capsule

Answer 5

thymus

Question 6

located at the entrance to the pharynx

Answer 6

tonsils

Question 7

provides protection against bacteria entering through the nasal cavity

Answer 7

tonsils

Question 8

The organ system composed of lymphatic vessels, lymph nodes, the tonsils, the spleen, and the thymus.

Answer 8

lymphatic system

Question 9

Accumulation of fluid within tissue.

Answer 9

edema

Question 10

Cells that occur throughout the body and protect against foreign chemicals.

Answer 10

immune system

Question 11

The round lymphoid tissue located along various lymphatic vessels that filter lymph.

Answer 11

lymph nodes

Question 12

The fluid inside a lymphatic capillary that passes through the lymphatic vessels and back to the blood.

Answer 12

lymph

Question 13

The protective gamma globulins of the body fluids.

Answer 13

antibodies

Question 14

A vessel that carries lymph from the capillaries to the veins.

Answer 14

lymphatic vessels

Question 15

The tissue of the lymphatic vessels, lymph nodes, tonsils, spleen, and thymus.

Answer 15

lymphatic tissue

Question 16

The white blood cells that are found in the blood, lymph, and lymphoid tissues; provide immunity.

Answer 16

lymphocytes

Question 17

The cells that develop in the thymus and depend on thymic hormones; also called T cells.

Answer 17

T lymphocytes

Question 18

The cells that react against foreign substances in the body and that produce circulating antibodies; also called B cells.

Answer 18

B lymphocytes

Question 19

The cells that phagocytize foreign matter and then transfer this matter to T cells to alert the immune systems of the foreign presence.

Answer 19

Macrophages