SI Lec - Lymphatic System Flashcards Preview

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Flashcards in SI Lec - Lymphatic System Deck (70)
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1

lymphatic system consists of

lymphatic vessels
lymphoid tissues
lymphoid organs

2

– activation of immune cells

lymphoid organs

3

counterpart of blood vessels; channels for lymph fluid

lymphatic vessels

4

results if system blocked or surgically removed

Edema

5

Terminal points of veins and arteries

Lymph capillaries

6

Have one way minivalves allowing excess fluid to enter but not leave

Lymph capillaries

7

Picks up bacteria and viruses as well as proteins, electrolytes and fluid

Lymph capillaries

8


Absent from bone, bone marrow, teeth, CNS

Lymph capillaries

9

Lymph capillaries are absent from (4)

Bone, BM, CNS, teeth

10

Similar to blood vessels (3 layers), but thin & delicate

lymphatic collecting vessels

11

Superficial lymphatic collecting vessels in skin travel with ___

superficial veins

12

Deep lymphatic collecting vessels of trunk and digestive viscera travel with deep arteries

deep veins

13

pressure in lymphatic collecting vessels

very low

14

distinctive appearance of lymphatic collecting vessels seen in __

lymphangiography

15

Lymphatic collecting vessels
drain into

lymph nodes

16

type of lymphoid organ, for production and maturation of lymphocytes

primary lymphoid organs

17

type of lymphoid organ, for differentiation and activation of lymphocytes

secondary lymphoid organs

18

primary lymphoid organs

Bone Marrow
Thymus

19

secondary lymphoid organs

MALT (Mucosa Associated Lymphoid Tissue)
Tonsils
Appendix
CALT (Cutaneous Associated Lymphoid Tissue)

20

-standby areas for immunocompetent lymphocytes (waiting for Ag encounter)

secondary lymphoid organs

21

Largest tissue of the body

Bone marrow

22

Produce all blood cells

Bone marrow

23

total weight of BM

1300 - 1500 g (adult)

24

Main source of hematopoietic tissue

BM

25

Center for Ag-independent lymphopoeisis

BM

26

Give % of B, T, NK cells in peripheral blood

In peripheral blood , B cells= 20% T cells= 61-89%, NK cells=22%

27

Where T cells develop their identity

thymus

28

Small, flat, bilobed organ found in the thorax, right below the thyroid gland and overlying the heart

thymus

29

mass of thymus at birth

30 g

30

mass of thymus at puberty

35 g

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