the lymphatic system

Question 1

what is the lymphatic system

Answer 1

a network of vessels and organs that isolate and neutralise foreign agents that can harm the body

Question 2

what is the lymphatic system comprised of

Answer 2

• lymph nodes
• lymph
• lymphatic vessels
• thymus glands
• tonsils
• spleen
• bone marrow

Question 3

how many lymph nodes are there in the body

Answer 3

600

Question 4

what is the function of lymph nodes

Answer 4

act as filters to remove the foreign particles from fluids that run through the vessels of the lymphatic system

Question 5

what are swollen lymph nodes a sign of

Answer 5

the body fighting an infection or disease

Question 6

what do lymph nodes contain

Answer 6

lymphocytes

Question 7

what are the two main lymphocytes

Answer 7

B and T

Question 8

what do B lymphocytes do

Answer 8

produce antibodies that attack foreign invaders

Question 9

what do T lymphocytes do

Answer 9

destroy cells taken over by an infectious agent or cancer

Question 10

infection leads to inflammation and heat and redness. why

Answer 10

the blood vessels dilate when there is an infection to allow larger immune cells to access the site of the infection, and heat is generated to damage the invader.

Question 11

what is adenopathy

Answer 11

when the lymph nodes become red hot and swollen in response to infection or disease

Question 12

what is an example of lymph node swelling that causes pain

Answer 12

those by the eustachian tube which can become compressed when they swell

Question 13

where are lymph nodes found

Answer 13

armpits
neck
groin
upper abdomen
mediastinum

Question 14

what are the main groups of lymph nodes

Answer 14

cervical
axillary
supraclavicular
mediastinal
inguinal
retroperitoneal
mesenteric
pelvic

Question 15

what are the three main cervical lymph nodes groups

Answer 15

anterior cervical
posterior cervical
occipital

Question 16

what causes the swelling of the anterior cervical lymph nodes

Answer 16

the common cold

Question 17

what causes the swelling of the posterior cervical lymph nodes

Answer 17

infectious mononucleosis

Question 18

what causes the swelling of the occipital lymph nodes

Answer 18

HIV

Question 19

where are anterior cervical lymph nodes located

Answer 19

front of the neck

Question 20

where are posterior cervical lymph nodes located

Answer 20

behind the muscles of the neck

Question 21

where are the occipital cervical lymph nodes located

Answer 21

back of the neck and base of the skull

Question 22

where are the axillary lymph nodes located

Answer 22

the armpit

Question 23

how many axillary lymph nodes are found in each armpit

Answer 23

between 10 and 40

Question 24

what does swelling of the axillary lymph nodes suggest

Answer 24

breast cancer, as the cancer shells shed from the breast tumour will travel here first

Question 25

where are the supraclavicular lymph nodes found

Answer 25

above the collarbone

Question 26

what causes the supraclavicular lymph nodes to swell

Answer 26

lymphoma or lung cancer

Question 27

where are the mediastinal lymph nodes located

Answer 27

in the centre of the chest cavity between the lungs

Question 28

where are the inguinal lymph nodes

Answer 28

the groin

Question 29

what causes the swelling of the mediastinal lymph nodes

Answer 29

lung cancer and some lymphomas

Question 30

what causes the swelling of the inguinal lymph nodes

Answer 30

injury STDs skin infections yeast infections cancer

Question 31

where are the retroperitoneal lymph nodes located

Answer 31

back of the abdomen

Question 32

what causes the swelling of the retroperitoneal lymph nodes

Answer 32

testicular cancer

Question 33

what causes the swelling of the mesenteric lymph nodes

Answer 33

gastroenteritis IBD lymphoma

Question 34

what is gastroenteritis

Answer 34

stomach flu

Question 35

where are mesenteric lymph nodes located

Answer 35

surrounding the intestine

Question 36

where are the pelvic lymph nodes

Answer 36

around the hip bones, bladder, rectum, and reproductive organs

Question 37

what causes swelling of the pelvic lymph nodes

Answer 37

bladder, prostate, cervical, ovarian or anal cancer

Question 38

what disease can swell the lymph nodes that we commonly come across in dentistry

Answer 38

sjogrens syndrome

Question 39

what is the thymus gland

Answer 39

the main organ of the lymphatic system located in the upper chest. promotes the development of the cells of the immune system called t lymphocytes. relatively large in size until puberty when it shrinks and is replaced by fat