Chapter 4 Part III Flashcards Preview

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Flashcards in Chapter 4 Part III Deck (16):
1

lymphatic vessels functions (3)

drain excess interstitial fluid
transport lymph to lymph nodes (foreign antigen detection in lymph nodes)
transport lymph to blood stream

2

structurally resemble continuous blood capillaries

lymphatic capillaries

3

differences btwn lymphatic capillaries and continuous blood capillaries

1 blind- ended- suddenly begin
2 NO PERICYTES
3 Endothelial cells can overlap, but create clefts btwn cells
4 NO fenestrae and NO tight junctions btwn endothelial cells
5 Contain bundles of lymphatic anchoring filaments

4

function of bundles of lymphatic anchoring filaments

support endothelial walls so capillaries stay open

5

Endothelial cells in continuous blood capillaries can overlap and creates cleft btwn cells, which allows for:

easy movement of materials into and out of vessels

6

small lymphatic vessels resemble _____

venules

7

______ & ______ have larger LUMEN and thinner walls; tunics blend together more than veins

medium and large lymphatic vessels

8

_______ of medium and large lymphatic vessels have endothelium and thin layer of CT with elastic fibers

tunica intima

9

_______ of medium and large lymphatic vessels are THIN smooth muscle layer

tunica media

10

_______ of medium and large lymphatic vessels are CT with collagen and elastic fibers

tunica adventitia

11

_____ are PRESENT IN medium and large lymphatic vessels; they are spaced closely

valves

12

_____ empty into venous system at junction of RIGHT internal jugular and subclavian veins

lymphatic ducts

13

lymphatic ducts INCLUDE ____ & ____

right lymphatic duct
thoracic duct

14

______ of lymphatic ducts have ENDOTHELIUM; several layers of COLLAGEN and ELASTIC fibers; layer of condensed elastic fibers

tunica intima

15

_____ of lymphatic ducts are longitudinal and circular layers of smooth muscle

tunica media

16

____ of lymphatic ducts are longitudinal smooth muscle cells; collagenous CT; vasa vasorum-like vessels

tunica adventitia