Lymphedema

Question 1

Define Lymphatic Capillaries

Answer 1

• Passive starting point of the lymphatic system- Unidirectional single layer of endothelial cells- Located between skin and muscle- Empty into collecting vessels

Question 2

Define Collecting Vessels

Answer 2

• Thin Vessels with weak walls- Require a pressure change to move lymph- Unidirectional valves prevent backflow- Empty into lymph nodes

Question 3

Define Lymph Nodes

Answer 3

• Filtering stations for cleansing lymph- Trap bacteria, CA, and broken cells- Centers for growth and storage of lymphocytes- Empty into ducts

Question 4

Where does the right lymphatic duct empty?

Answer 4

At the junction of the jucnction of the Right Subclavian Vein and right internal jugular

Question 5

Where does the thoracic duct empty?

Answer 5

Junction of left internal jugular and left subclavian veins

Question 6

Which duct drains the Right Upper Quadrant?

Answer 6

Right Lymphatic duct

Question 7

What does the thoracic duct drain?

Answer 7

LUE & BLEs

Question 8

What are the main functions of the lymphatic system?

Answer 8

• Immune system defense- Nutrition- Fluid Balance (maintain homeostasis)

Question 9

Define osmotic pressure

Answer 9

The pressure needed to prevent inward flow of water across a semipermeable membrane

Question 10

Define hydrostatic pressure

Answer 10

The state of stress of the system when a fluid is at rest and all mechanical stresses vanish

Question 11

What is Starling’s law of the capillaries?

Answer 11

The direction and rate of exchange of fluid between the capillaries and interstital space is dictated by the hydrostatic and osmotic pressures