Lymphatic

Question 1

Function of l.s

Answer 1

Return fluid from the extra cellular spaces to the bloodstream

Protects the body from pathogenic microorganisms

“Biological filtering system”

Question 2

Homeostasis of the l.s

Answer 2

Supports homestasis by recycling fluids back in the bloodstream

Question 3

The lymphatic network

Answer 3

The flow of interstitial fluid from the extracelluar spaces into the lympatic network is primarily influenced by a pressure gradient

Once within the network the fluid is called lymph. A clear fluid with a high protein concentration

Question 4

Structures of l. Network

Answer 4

Lymphatic capillaries

• blind ended vessels where lymph flow begins
• similar in structure to blood capillaries
• single layer of epithelial tissue

Lymphatic vessels

• larger continuations of the capillaries that carry lymph toward the heart
• similar in structure to veins
• contain one way valves

Question 5

L. Trunk and collecting vessels

Answer 5

Thoracic duct

• main collecting duct for the lymphatic network
• drains lymph from the left side of the head neck thorax and upper limb and entire body below the diaphragm

Right lymphatic duct
-drains lymph from the right side of the head neck and thorax and the upper limb