6. The Lymphatic System Flashcards Preview

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Flashcards in 6. The Lymphatic System Deck (13):
1

What embryological sructure gives rise to the lymphatic vessels, lymph nodes, spleen, and myeloid tissue?

Mesoderm

2

What embryological structure gives rise to the thymus and parts of the tonsils?

Endoderm

3

What four tissues do not have lymphatic vessels?

Epidermis

Endomysium

Cartilage

Bone Marrow

4

What muscular unit propels lymph through the lymphatic vessels?

Lymphangions

5

What cells are found in the deep cortex of a lymph node?

T cells

6

Where is Virchow's node?

 

What might it signify?

L upper clavicular space

 

Inter-thoracic / abdominal malignancy

7

Where are the epitrochlear nodes?

 

What can they signify?

Above the trochlea of the humerus

 

Secondary syphilis

8

What is drained by the thoracic duct?

Everything below the umbilicus

Everything left of the mid-saggital line

9

What is the cisterna chyli?

A distal dilation of the thoracic duct at L1-2, receiving lymph from the lumbar lymphatics

 

Is also the origin of the thoracic duct

10

Where does the thoracic duct terminate?

Into the L subclavian and internal jugular veins.

11

Where does the right lymphatic duct originate and terminate?

Origin: Junction of the right jugular and right subclavian trunks.

Termination: Empties at the juction of the right subclavian and right internal jugular veins.

12

What is the effect of the sympathetic nervous system on the lymphatic system?

Decreased lymphatic peristalsis, and tighter lymphatic valves

13

What is responible for movement of spleninc fluid through the spleen?

Movement of the thoracic diaphragm