Med Term Chapter 14

Front 1

What are the 3 functions of the lymphatic system?

Back 1

1) Act as drainage system to recapture proteins + fluid that have leaked out of blood stream

2) Absorb fats from small Intestine+transport them to blood stream

3) Work w/ immune system in fighting infections

Front 2

What do the lymph nodes do during infections?

Back 2

They get swollen and get filled up with lymphocytes and crap

Front 3

What is lymph?

Back 3

clear watery fluid that surrounds the cells and flows in the system of lymph vessels (analogous to blood in the circulatory system)

Front 4

the lymphatic system works very closely/alongside what other system?

Back 4

the circulatory system

Front 5

What are Lymph Vessels?

Back 5

vessels similar to veins in the circulatory system that possess one-way valves (like veins) and move lymph fluid to lymph nodes.

Front 6

Where are lymph nodes located?

Back 6

located all along the path of the lymph vessels

Front 7

What are Lymphocytes?

Back 7

Lymph cells produced in the lymph nodes

Front 8

What do the lymph nodes do?

Back 8

Filter the lymph fluid and trap substances from inflammatory and cancerous lesions.

DURING infection, they swell with increased numbers of lymphocytes and collected debris

Front 9

What's the thymus gland?

Back 9

A type of lymph organ that shrinks from birth to adulthood that helps the body with disease, ESPECIALLY in childhood (before immune system matures)

Front 10

Where is the thymus gland located?

Back 10

located in the upper mediastinum

Front 11

All lymph vessels lead to the thoracic cavity to WHAT 2 large ducts?

Back 11

1) Right lymphatic duct--drains the right side of head+chest

2) Thoracic duct--drains the lower body+left side of head

Front 12

What is the spleen and what does it do?

Back 12

Organ made of lymph tissue.

Destroys old RBCs, filters microorganisms+foreign material from blood;
activates lymphocytes
stores blood, especially RBCs and platelets.

Front 13

The immune system is composed of what?

Back 13

1) lymphoid organs (lymph nodes, spleen and thymus gland)

2) The products of lymphoid organs (lymphocytes, antibodies) and macrophages

Front 14

What is Natural Immunity?

Back 14

Present from birth and consists of phagocytes, macrophages and natural killer cells.

Front 15

What is Acquired immunity?

Back 15

The body develops powerful, specific immunity against invading antigens.

Front 16

What is the difference between Active Immunity and Passive Immunity?

Back 16

Active: getting a disease; Getting a vaccine; Transfer of immune cells from a donor.

Passive: Receiving an antibody serum (ex: tetnus) or injections; receiving maternal antibodies from placenta/breastmilk.

Front 17

True or False: with AIDS infection, immune cells are destroyed in the process of the virus using those immune cells.

Back 17

TRUE

Front 18

True or False? You can die directly of AIDS.

Back 18

FALSE: you die from some random illness/secondary infection caused by your immune system getting destroyed by AIDS

Front 19

immun/o

Back 19

protection

Front 20

lymph/o

Back 20

lymph

Front 21

lymphaden/o

Back 21

lymph node

Front 22

splen/o

Back 22

spleen

Front 23

thym/o

Back 23

thymus gland

Front 24

tox/o

Back 24

poison

Front 25

ana-

Back 25

away from, backward

Front 26

inter-

Back 26

between

Front 27

What is an allergy?

Back 27

Allergy=an abnormal hypersensitivity acquired by exposure to an antigen.

Front 28

What's a lymphoma?

Back 28

malignant tumor of lymph nodes/lymph tissues

Front 29

Multiple myeloma?

Back 29

malignant tumor of bone marrow cells

Front 30

thymoma?

Back 30

malignant tumor of the thymus gland