lymphatic system – 2nd stage

Lymphatic system & Immunity
Lymph – excess tissue fluid carried by lymphatic vessels (general definition)
Jobs of Lymphatic System
Lymphatic System which consists of vessels and organs plays two vital roles in our lives:
1) The vessels essentially maintain interstitial fluid levels by carrying excess fluids as well as any plasma proteins, back into the CVS.
The organs, house critical immune cells such as lymphocytes which carry out our body defense against infection and disease as well as offer ACQUIRED IMMUNITY .
Properties of lymphatic vessels
 One way system toward the heart – 
– No pump
 Lymph moves toward the heart
• Milking action of skeletal muscle
• Rhythmic contraction of smooth muscle in vessel walls