Lymphatic System Flashcards

1
Q

Lymphatic system

A

vast collection of cells and biochemicals that travel in lymphatic vessels.

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2
Q

L.S helps

A

circulate bodily fluids (C.S)

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3
Q

L,S second function

A

enables us to live in world with different organisms

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4
Q

Lymph capillaries

A

micr closed ended tubes that allow fluid to enter

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5
Q

lymphatic vessels

A

like veins, prevent backflow of lymph

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6
Q

lymph nodes

A

vessels drain into the nodes

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7
Q

lymphatic trunks

A

drain lymph from L vessels

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8
Q

Thoracic duct

A

collects lymph from lower limbs abs left side of body head and neck

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9
Q

Right Lymphatic Duct

A

lymph on right side of body

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10
Q

Order of lymph movement

A
capillary
affarent vessel
node
efferent vessel
trunk
collecting duct
subclavian vein
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11
Q

Removing Lymphatic tissue

A

can obstruct drainage from the upper limb, causing edema

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12
Q

Lymph nodes contain

A

B and T cells and macrophages

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13
Q

hilum

A

lymphatic vessels leading to a node

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14
Q

tonsils

A

partially encapsulated lymph nodes

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15
Q

1st function of Lymph nodes

A

filtering harmful particle from blood stream

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16
Q

2nd function of Lymph nodes

A

monitoring body fluids

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17
Q

thymus

A

soft bilobed gland enclosed in connective tissue and located anteriorly of the aorta and posterior to the upper sternum

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18
Q

T lymphocytes

A

leave thymus and provide immunity

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19
Q

spleen

A

R.B.Cs die here

20
Q

innate defense

A

simple defense that protects against many pathogens

21
Q

adaptive defense

A

specific targets specific pathogens

22
Q

chemical barrier

A

enzymes gastric acid due to low PH

23
Q

interferons

A

Lymphocytes and fibroblasts produce this in response to virus or tumor cells
block replication

24
Q

pus

A

WBC bacteria and damaged tissue

25
Q

immunity

A

third line of defense

26
Q

antigens

A

proteins located on cell surface

27
Q

antigen-presenting

A

Tcell activation requires presence of processed fragments of antigen attatched to the surface of another type of cell,

28
Q

imunoglobins

A

globular plasma protein that functions as an antibody

29
Q

IgC

A

in plasma and tissue fluids and is particularly effective against bacteria, viruses, and toxins. It also activates as a compliment.

30
Q

IgA

A

found in exocrine gland secretions. found in breast milk, tears, and urine.

31
Q

IgE

A

associated with allergic reactions

32
Q

Anaphylictic shock

A

allergic reaction
bust out in red hives
injection of epinephrin

33
Q

autoimmunity

A

body attacks itself because of unfamiliar antigens

34
Q

streptococcus bacteria

A

triggers inflamation of heart valves

35
Q

largest lymph vessel

A

thoracic duct

36
Q

lymph rejoins blood and becomes art of the plasma in the

A

right and left subclavian veins

37
Q

tissue fluid originates from

A

blood plasma

38
Q

movement of lymph is because of

A

muscle contraction

39
Q

chemotaxis

A

attraction of macrophages in area

40
Q

B and T cells

A

2nd immune response

41
Q

Red blood cells

A

do not present their antigen

42
Q

Haptens

A

partial antigens, combines with something fo reaction

43
Q

thymus

A

degenerates through life

44
Q

T cells

A

recognize antigens not cells

45
Q

lymph flow

A

to the heart