ch 20 - lymphatic system

Upon entering the lymphatic vessels interstitial fluid is called?

lymph

One way valves in lymphatic vessels, trunks, and ducts facilitate ____-____ movement towards the _____.

one-way

heart

Where does lymph transport originate/become absorbed from interstitial fluid?

lymphatic capillaries

Waste clearance system that uses CSF to clear waste produced by brain?

glymphatic system

Pressure from what drives lymph into capillaries?

hydrostatic fluid

An increase in interstitial fluid would cause what to occur with the lymphatic capillaries?

minivalves open

What structural feature of lymphatic capillaries anchors the ec’s that make them up to surrounding structures?

collagen filaments

When fluid pressure in interstitial space is lower than that of the lymphatic capillary, what occurs?

capillary minivalves shut, prevents lymph from leaking out

Lymphatic capillaries are made of highly permeable _______ cells.

endothelial

Lacteals are a specialized set of capillaries able to transport what?

fats from small intestine → blood

Lacteals transport what specialized lymph?

chyle

In order from smallest → largest how does lymph flow through its channels?

lymphatic capillaries → collecting lymphatic vessels → lymphatic trunks → lymphatic ducts

Lymphatic vessels are most similar to what structure of the body?

• veins

• (have same three tunic makeup + valves)

What structure do lymphatic structures flow alongside?

veins + arteries

What structures in the lymphatic system are composed of lymphoid follicles?

appendix

lymph nodes

Peyer’s patches