Topic 46 - Lymphatic vessels Flashcards

1
Q

What is lymphatic vessels?

A
  • Drainage vessel system.

* Begins with lymph capillaries in tissues

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2
Q

What is their function?

A

carry excess extracellular fluid into circulation

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3
Q

What is Lymphatic capillaries?

compare to blood capillaries

A

-fine tube-like spaces lined by endothelium. Wider and more irregular shaped than the blood capillaries and never contain blood corpuscles. Lack lamina basalis and pericytes. Collect into lymphatic vessels.

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4
Q
Lymphatic vessels (histologically resemble veins)
Tunica intima
A

endothelium + subendothelial CT

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5
Q
Lymphatic vessels (histologically resemble veins)
Tunica media
A

circular smooth muscle + few elastic fibres

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6
Q
Lymphatic vessels (histologically resemble veins)
Tunica adventitia
A

longitudinal smooth muscle + collagen fibres

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