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BIO 202 > Lymph System > Flashcards

Lymph System Flashcards

1
Q

What do lymph vessels do?

A

transport fluid back into blood

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2
Q

Characteristics of Lymph vessels

A
  • one-way straw-like vessels that take lymph fluid back to the heart
  • weave. b/w tissues and capillaries and absorb leaked fluid ( lymph )
  • extremely permeable and are low-pressure vessels
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3
Q

Tissue type of lymph vessels

A

simple squamous epithelial cells

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4
Q

Why are lymph nodes permeable?

A

so proteins, cell debris, bacteria, and viruses can enter

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5
Q

Can lymph capillaries get inflamed easily ( T/F )

A

True

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6
Q

How is Lymph returned back to the Nervous System

A

the Right lymphatic duct/thoracic duct.

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7
Q

What duct drain lymph from the
right arm + right side of the head + Thorax

A

right lymphatic duct

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8
Q

What duct drain lymph from the rest of the body?

A

thoracic duct

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9
Q

do both the r lymphatic duct and thoracic duct drain into the subclavian veins (t/f)

A

True

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10
Q

Which duct drains into the Right subclavian vein

A

R. Lymphatic vein

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11
Q

Which duct drains into the Left subclavian vein

A

Thoratic Duct

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12
Q

what does the lymphatic vessles rely on for transport

A

Skeletal pumps

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13
Q

How do lymph nodes protect the body

A
  • removing foreign materials form lymph
  • houses lymphocytes that work with immune sysyem
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14
Q

What do the macrophages in LN’s do

A

engulf and destroy bacteria + viruses + other pathogens in lymph

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15
Q

What do the Lymphocytes in LN’s do

A

respond to foreign substances in lymphatic fluids prior to returning to blood.

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16
Q

Lymph node characteriscts

A
  • kidney shaped
  • less than 1 inch long
  • buried in CT
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17
Q

Where are LN found?

A

along Vessels

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18
Q

Where are concentrated parts of LN

A

Lingual
Axillary
Iiliac
Mesonteric
Mandibular
Lumbar
Popliteal
Cervical
Lana all in me makes love pretty cunt

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19
Q

What are swollen glands

A

swollen lymph nodes

20
Q

What is trabecule

A

part of the fibrous capsule that divides the node into compartments

21
Q

Characteristics of the spleen

A
  • Soft
  • blood-rich organ
  • filters blood
22
Q

what does the spleen filter

A

from
- Bacteria
- viruses
- other debri

23
Q

what organ served as a site for
Lymphocyte proliferation + immune surveillance

A

spleen

24
Q

what does swollen LN indicate?

A
  • active infection
  • resulting from trapping of lymphocytes and macrophages
25
Q

what are the immune cells in speel responsible for

A
  • destroying old RBC
  • returning products liver for recycling
26
Q

what does the spleen also store?

A

Platelets ( blood reservoir )

27
Q

Purpose of speel in fetus vs adults

A

Fetus: a hematopoietic site
Adults: only makes lymphocytes

28
Q

at what age is the thymus most active

A

youth

29
Q

Where is the thymus located

A

low in the throat, overlying heart

30
Q

Does the thymus shrink or grow as we age to adults

A

shrink

31
Q

what hormone does the thymus make

A

thymosin

32
Q

what does thymosin do

A

makes lymphocyte -> t- lymph and be a protective role

33
Q

what are t-cell able to distinguish between

A

between seld and non self substances

34
Q

what are tonsils?

A

small masses of lymphoid tissues that ring around pharynx

35
Q

f(x) of tonsils

A

trap and remove bacteria/ foreign pathogens from entering the throat

36
Q

Where are Lingual tonsils found

A

behind tounge

37
Q

Where are Pharyngeal tonsils found

A

by nose

38
Q

Where are Palatine tonsils found

A

back of throat

39
Q

how does tonsillitis occur

A

when tonsils become congested with bacteria

40
Q

Where are peyers patches located

A

in the distal part of the small intestine

41
Q

where is the appendix located

A

worm-like offshoot of large intestine

42
Q

What do pyers patches and appendix prevent?

A

prevent bacteria from penetrating intestinal wall. MALT

43
Q

What is MALT

A

Mucosa-Associated Lymphoid Tissue

44
Q

What does the MALT do

A

protects the GI tract

45
Q
A

BIO 202 (6 decks)

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