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Flashcards in Lymph lecture Deck (22):
1

Functions of lymph

Tissue drainage
Return plasma and plasma protein
Part of immunity

2

Lymphatic vessels

Absorb proteins from tissue fluid

3

Lymphatic tissues

Eg thymus, spleen, tonsils, bone marrow

4

How much ISF from extracellular space to venous system a day?

8L

5

Lymph

Fluid and plasma proteins
Gains lymphocytes in lymphatic capillaries
Fats added in intestine

6

How is the flow similar to that of veins?

Has valves, muscle contraction, pressure changes and gravity

7

Is tissue fluid higher or lower in infection and why

Higher as more phagocytosis and oedema due to osmosis

8

Lymph nodes are primary or secondary lymphoid tissue?

Secondary

9

Does efferent lymph have more or less antibodies?

More and has been filtered

10

Lymph node parts

Germinal centre - secondary lymphoid follicles
Lymphocytes

11

Drainage in limbs

Superficial - superficial veins
Deep - deep veins and arteries

12

Cavities have superficial or deep arteries?

Deep

13

Where are lymphatic vessels absent from?

Eyes, CNS, bone, epidermis

14

What allows superficial ==> deep drainage

Openings in fascia to allow it to get back into circulation

15

Where are 50% nodes?

Abdomen and pelvis

16

Preaortic

Infront of aorta, midline, Supply GI and unpaired

17

Paraaortic

Behind aorta and paired lateral branches to body wall and paired organs

18

4 pathologies

- Secondary tumour by metastasis
- Infection eg TB
- Inflammatory hyperplasia - enlarged organ
- Primary tumour eg lymphoma hodgkins

19

Name the 2 lymph ducts

Thoracic duct and right lymphatic duct

20

Where do these ducts empty?

Jugular/subclavian vein

21

Which part of the body does the right lymphatic duct drain?

Right upper quadrant including head, neck, upper limb and thorax

22

Spleen

Largest lymphatic organ and find T and B cells