| Original Message |
Shannon Murphy (Login snow1)
Posted Mar 29, 2007 6:27 PM
1.
a) Groups of lymphocytes and other cells which support the lymphocytes.
b) Encapsulated masses of lymph tissue found along lymph vessels
c) Watery liquid formed from interstitial fluid and found in lymph vessels
d) A buildup of excess fluid in the tissues, which can lead to swelling
e) The process by which the body protects itself from pathogenic invaders such as bacteria, fungi, parasites, and foreign substances
f) Concentrations of lymphatic tissue with no clear boundaries
g) Lymphatic tissue arrayed into compact, somewhat spherical structures.
h) An immune response that is the same regardless of the pathogen or toxin encountered
i) An immune response targeted at a specific pathogen or toxin
j) A series of 20 plasma proteins activated by foreign cells or antibodies to cells. They (1) lyse bacteria, (2) promote phagocytosis, and (3) promotes inflammation
k) Proteins secreted by cells infected with a virus. These proteins stimulate nearby cells to produce virus-fighting substances
l) Chemical which promote fever by acting on the hypothalamus
m) Immunity which comes from anti-bodies in blood plasma
n) Immunity which comes from the actions of T-lymphocytes
2.
The interstitial fluid enters the lymph vessels
3.
a) ns diffusion and osmosis
b) contraction of skeletal and smooth muscles. Also the pressures from the thoracic pressure when one breathes.
4.
Maintains fluid balance
Absorption of fats
Immunological defense
5.
a) no
b) The lymph nodes filters out and adds things to the lymph.
6.
a) Tonsils are groups of lymph nodes
b) Found in the throat
7.
a) Groups of lymphocytes in lymph nodules
b) Found in small intestines
8.
a) Afferent vessels dumps lymph into lymph nodes while efferent vessels flow out of the lymph nodes
b) More afferent than efferent
9.
Testing stations
Produces lymphocytes if tests show a need
Filters out all waste in lymph
10.
Filters blood
Rids the blood of worn-out erythrocytes
Storage for oxygen-rich blood
11.
Promotes maturation of T-lymphocytes
Releases the hormone Thymosin
12.
Innate--
Skin
Mucus
Urine
Natural killer cells
interferon
Vasodilation
Acquired--
T-cells
B-cells
Antibodies
13.
a) one way valve
b) afferent lymph vessels
c) germinal center
d) lymph nodule
e) capsule
f) trabeculae
g) efferent lymph vessels
h) reticular fibers
14.
a- acts as a barrier
b- Sweat washes the skins surface and lowers pH
c- secretes antibacterial oils
d- mucus traps microoganisms and pathogens
e- gastric juice's acid kills pathogens and bacteria before they get anywhere.
f- tears contain lysozyme which breaks cells walls
g- urine cleanses the urinary tract
h- it squeezes out populations of bacteria and wards it off on the skin
i- complement fights foreign cells
j- interferon works against viral invaders
k- white blood cells are phagocytes
l- basophils release histamine and promote inflammation
m- Eosinophils reduces inflammation
n- Vasodilation makes the blood vessels get larger
o- Pyrogens promot fever
15.
L
16.
The variable regions
17.
Bind directly to the antigen
Bind the antigens together in groups
Activate complement
Stimulate phagocytosis
Stimulate inflammation
18.
a) Plasma B-cells--release antibodies into the plasma so that the antibodies attack the antigens to which they can bind
b) memory B-cells--they give the immune system its memory
c) memory B-cells
19.
The MHC acts as a fingerprint, it is on all the cells.
20.
a) Cytotoxic T-cell--they recognise and then puncture foreign cells
b) Memory T-cell--same as B-cells: they give the immune systemits memory
c) Helper T-cells--stimulates the proliferation of the B-cells and cytotoxic T-cells
~Shannon |
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