week 7- lymph system

Question 1

A clear, watery fluid that surrounds body cells and flows in a system of thin-walled lymph vessels

Answer 1

lymph

Question 2

does lymph contain RBCs or platelets

Answer 2

nope

Question 3

what is in lymph?

Answer 3

lymphocytes and monocytes (less protein than blood)

Question 4

drains the right side of the head

Answer 4

right lymphatic duct

Question 5

drains the right side of the head

Answer 5

right lymphatic duct

Question 6

drains the lower body and the left side of the head

Answer 6

Thoracic duct

Question 7

what are the functions of the lymphatic system?

Answer 7

1. drainage system
2. absorb fats in teh small intestines and transport them to the blood stream
3. immune function… duhhh

Question 8

lymphadenitis

Answer 8

swollen lymph nodes

Question 9

what lymphocytes produce antiboides

Answer 9

b-lymphcytes

Question 10

where is the spleen located?

Answer 10

left upper quadrant of the abdomen

Question 11

functions of the spleen:

Answer 11

1. Destruction of old RBCs by macrophages
2. Filtration of microorganisms and other foreign material from blood 3. Activation of lymphocytes – both B cells and T cells
3. Storage of blood - especially RBCs and platelets

Question 12

lymphocytes learn to recognize and accept the body’s own antigens as “self” or friendly” and don’t attack themselves

What is this called?

Answer 12

tolerance

Question 13

Resistance present at BIRTH and NOT dependent on exposure to an antigen and there is NO immunological memory

Answer 13

natural immunity

Question 14

Ability to recognize and remember specific antigens in an immune response

Answer 14

adaptive immunity

Question 15

T cells recognize and remember specific antigens and produce (stronger/weaker) attacks each time the antigen is encountered

Answer 15

stronger

Question 16

is vaccination natural or adaptive immunity?

Answer 16

adaptive immunity

Question 17

Humoral immunity

Answer 17

B cells / antibodies

Question 18

what cells produce immunoglobulins?

Answer 18

plasma cells (that were once B cells)

Question 19

Cytotoxic T cells

Answer 19

(CD8+ T cells) - attach to antigens and directly kill them

Also secrete cytokines (interferons and interleukins)

Question 20

Helper T cells

Answer 20

(CD4+ T cells) - assist B cells in making antibodies and stimulate T cells to attack antigen

Question 21

Suppressor T cells (regulatory T cells) -

Answer 21

inhibit both B and T cells and prevent them from attacking the body’s own good cells
TOLERANCE

Question 22

Dendritic cells

Answer 22

initiate adaptive immune response by “presenting” antigens to T and B cells showing them precisely what they need to counteract

Question 23

HIV destroys what type of cells?

Answer 23

T cells