Ch. 19 Extra Study Stuff

Question 1

_____ is the beginning of the lymphatic system.

Answer 1

Lymphatic Capillaries

Question 2

_____ are Thymus medullary cells

Answer 2

Thymic corpuscles

Question 3

____ receives lymph from the right lymphatic duct

Answer 3

Right subclavian vein

Question 4

____ receives lymph from the left half of the head

Answer 4

Thoracic duct

Question 5

The lymphoid organs include ____, ____, and ____.

Answer 5

Thymus
Spleen
Lymph nodes

Question 6

____ is the smallest lymphoid organ

Answer 6

Lymph Nodes

Question 7

____ regulates and coordinates the immune response.

Answer 7

helper T cells and suppressor T cells

Question 8

____ is the largest mass of lymphoid tissue in the body.

Answer 8

spleen

Question 9

____ maintains blood-thymus barrier.

Answer 9

Reticular epithelial cells

Question 10

____ occurs in red bone marrow, thymus, and lymphoid tissues

Answer 10

Lymphopoiesis

Question 11

____ cause cell-mediated immunity

Answer 11

Cytotoxic T cells

Question 12

____ are lymphoid nodules in the walls of the pharynx

Answer 12

Tonsils

Question 13

____ cause antibody-mediated immunity

Answer 13

B cells

Question 14

____ carry lymph to lymph nodes

Answer 14

Afferent Lymphatics

Question 15

Three characteristics of a physical barrier such as the skin.

Answer 15

Multiple layers
A coating of keratinized cells
A network of desmosomes locking adjacent cells together

Question 16

NK cells sensitive to the presence of abnormal plasma membranes are primarily involved in what?

Answer 16

Immunological surveillance

Question 17

____ is the nonspecific defense that breaks down cells, attracts phagocytes, and stimulates inflammation.

Answer 17

The Complement System

Question 18

____ are the the proteins that interfere with the replication of viruses.

Answer 18

Interferons

Question 19

____ are circulating proteins that reset the thermostat in the hypothalamus, causing a rise in body temp.

Answer 19

Pyrogens

Question 20

____ is the first line of cellular defense against pathogenic invasion.

Answer 20

Phagocytes

Question 21

How is a fever beneficial?

Answer 21

A high body temp may inhibit some viruses and bacteria or speed their reproductive rates so the disease runs its course more quickly. It also increases the metabolic rate which help defense and the repair process.