Lymphatic System

Front 1

What are the lymphatic organs?

Back 1

spleen, thymus, lymph nodes

Front 2

Functions of the lymphatic system?

Back 2

1. drains excess interstitial fluid

- return interst. fluid to blood

- maintian blood vol

2. transports dietary lipids

- lipids/lipid-sol. vitamins aborbed by GI tract and transported to blood

3. carries our immune responses

Front 3

Which vitamins are lipid soluble?

Back 3

A D E K

Front 4

Lymphatic capillaries diameter slightly (larger/smaller) than blood capillaries

Back 4

larger

Front 5

What permits the flow of fluid into the lymph capillaries?

Back 5

Pressure difference b/w interstitial fluid and lymph

Front 6

What tissues lack lymphatic capllaries?

Back 6

AVASCULAR TISSUES

- epidermis, cornea,CNS, spleen bone, red bone marrow

Front 7

Excess interstitial fluid in the area causes

Back 7

swelling

Front 8

Specialized lymphatic capillaries found in villi of small intestine are called? What do they do?

Back 8

lacteals - absorb fats from digestive tract

Front 9

Chyle is?

Back 9

lymphs draining from the small intestine appears creamy white (due to fats)

Front 10

Lymph flows from

Back 10

1. lymphatic capillaries

2. lymphatic vessels -> lymph nodes

3. lymph trunks

4. lymph ducts

Front 11

What are the 5 principal lymph trunks

Back 11

1. lumbar trunks - lower limbs, kidneys, adrenal glands abdominal wall

2. intestinal trunks - stomach, intestine, pancreas, spleen, liver

3. Bronchomediastinal trunks - thoracic wall, lung, heart

4. Subclavian trunks - free upper limbs

5. Jugular trunks - head and neck

Front 12

1. which trunks open independently into the venous system?

2. Which trunks eventually merge as the thoracic duct?

Back 12

1. right: jugular, subclavian, bronchomediastinal

2. lumbar, intestinal and LEFT jugular, subclavian and bronchomediastinal

Front 13

What are the primary lymphatic organs? WHat do they do?

Back 13

- thymus and red bone marrow

sites where stem cells divide and become immunocompetent - RBM gives rise to mature immunocompetent B cells and pre-T cells

Front 14

What are the secondary lymphatic organs and tissues?

Back 14

(where most immune responses occur)

- lymph nodes, spleen and lymphatic nodules

Front 15

Immature T cells migrate from RBM to _____ of thymus

Back 15

cortex

-

Front 16

majority of lymph nodes are distribute where?

Back 16

mammary glands, axillae and groin

Front 17

1. primary lymphatic nodules contain

2. primary lymphatic nodules develop into secondary lymphatic nodules when

Back 17

1. naive B cells that are not activated

2. B cells in primary lymphatic nodules are activated by an antigen

Front 18

Germinal centers of secondary lymphatic nodules are

Back 18

sites of B cell activation, proliferation and differentiation into plasma cells and B memory cells

Front 19

Follicular dendritic cells function

Back 19

sample incoming lymph from afferent lymphatic vessels for foreign antigens

Front 20

What is the route of lymph flow through a lymph node?

Back 20

1. afferent lymphatic vessel

2. trabecular sinus

3. medullary sinus

4. efferent lymphatic vessel

Front 21

Lymphatic tissue

1. white pulp consists mostly of

Back 21

1. lymphocytes and macrophages arranges around central arteries

Front 22

What is red pulp? 1. functions of the spleen within the red pulp

Back 22

- blood-filled venous sinus

1. marophages remove ruptured or defective blood cells and platelets

- store platelets

- hemotopoiesis during fetal development

Front 23

What are lymphatic nodules?

Back 23

- masses of lymphatic tissue that are not surrounded by a capsule