Chapter 24 Lymphatic System

Question 1

Disease producing microbes such as bacteria and viruses known as what term?

Answer 1

Pathogens

Question 2

The ability to ward off disease or damage through the body’s defense is?

Answer 2

Immunity

Question 3

Another term for vulnerability or lack of resistance?

Answer 3

Susceptibility

Question 4

This type of immunity is present at birth, has no memory, is fast. Examples include barriers (skin), fever, inflammation, natural killer cells, phagocytes.

Answer 4

Innate (nonspecific) immunity

Question 5

This type of immunity is slower but more specific, has a memory component. Examples include lymphocytes: T cells and B cells.

Answer 5

Adaptive (specific) immunity

Question 6

This body system is responsible for adaptive immunity (and some aspects of innate immunity).

Answer 6

Lymphatic system

Question 7

This specialized form of reticular connective tissue contains large numbers of lymphocytes.

Answer 7

Lymphatic tissue

Question 8

List the 3 primary functions of the lymphatic system

Answer 8

Drainage of excess fluids
Transports dietary lipids
Carries out immune responses

Question 9

Interstitial fluid within lymphatic vessels is called what? Contains less protein than blood plasma.

Answer 9

Lymph

Question 10

Lymphatic vessels begin where? What do lymphatic vessels resemble in terms of structure (valve)?

Answer 10

Lymphatic capillaries, lymphatic vessels resemble veins

Question 11

Capsules( bean-shaped) surrounding lymphocytes, through which lymph flows, is what? Approx.

Answer 11

Lymph nodes, about 600

Question 12

Name the main lymph-collecting duct, receives lymph from left side of head, neck, chest; left upper limb; entire body below ribs.

Answer 12

Thoracic duct

Question 13

This other main duct drains lymph from upper right side of body.

Answer 13

Right lymphatic duct

Question 14

Where does lymph drain back into eventually? Which veins.

Answer 14

Blood. Left and right internal jugulars, left and right subclavian veins

Question 15

Lymph flows via venous return by the same two pumps as blood in veins. Name the pumps.

Answer 15

Skeletal muscle pumps, respiratory pumps.

Question 16

Condition where excessive interstitial fluid has accumulated into tissues producing swelling. What’s the condition where interstitial fluid backs up in lymphatic pathways?

Answer 16

Edema, lymphedema

Question 17

THe spleen, lymph nodes, and lymphatic nodules are examples of primary or secondary lymphatic organs?

Answer 17

Secondary

Question 18

Red bone marrow and the thymus are examples of primary or secondary lymphatic organs?

Answer 18

Primary

Question 19

This two lobed organ, posterior to the sternum, contains large numbers of T cells. It matures T cells and then sends to lymph nodes and spleen.

Answer 19

Thymus

Question 20

True or false: lymph nodes usually occur in groups and are both superficial and deep.

Answer 20

True

Question 21

Lymph is filtered in lymph nodes, through which vessel does filtered lymph leave a node?

Answer 21

Efferent lymphatic vessels

Question 22

Lymph is filtered in lymph nodes, through which vessel does lymph enter a node?

Answer 22

Afferent lymphatic vessels

Question 23

The spread of disease to different parts of the body is known as what? This can happen through lymphatic vessels.

Answer 23

Metastasis

Question 24

Lymphoma is cancer lymphatic organs ( lymph nodes specifically), what are two types of lymphomas?

Answer 24

Hodgkin disease, non- Hodgkin disease