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OPP Lect 14
Question | Answer |
---|---|
Lymph embryological development | Most comes from lateral plate mesoderm **thymus and tonsils from the forgut mesoderm |
Four functions of Lymphatic system | 1. Maintaining fluid balance in body 2. Purification of tissue (lymph nodes) 3. Immune Defense 4. Nutrition (lacteals) |
Commonly palpated nodes for infection | Cervical chains and inguinal lymph nodes |
Superficial vs Deep lymph flow | Superficial accounts for 70% of all lymph flow -Not stimulated by muscle contractions Deep located around major arteries and veins -stimulated by muscle contraction |
Intrinsic Lymphatic pump | Functional units of the lymph collectors (lymphangions) innervated by ANS -Contractions aided by interstitial fluid pressure, one-way valves, and anchoring filaments |
Extrinsic Lymphatic pump | Direct external pressure on the lymph vessels from: -Diaphragms -muscle contractions/exercise (20X flow) -respiration -peristalsis -adjacent arteries |
Lymphatic impairment | due to poor drainage, can lead to death because the body's proteins do not return to circulatory system **can cause auto-intoxication |
Lymphodynamic Edema | Lymphatic system is normal, however there is too much fluid coming in. **Low protein |
Lymphostatic Edema | LYMPHEDEMA. Lymphatic system is abnormal and there isn't enough fluid flowing out. **High protein |
Primary Lymphedema | (lymphostatic).Congenital, idiopathic.lymphatic vessels or nodes are not developed, under developed, or over developed (A, Hypo, Hyperplastic). 90% in lower extremity. If Hereditary (Milroy's or Meige's disease) |
Secondary Lymphedema | Any Lymphostatic edema not caused by the embryological development of the lymphatic system |
Lymphatic diaphragms | Transverse fascial planes working in sync with abdominal diaphragm. **Restriction causes decreased flow and Increased pathology |
Zink's fascial patterns | Introduced the respiratory-circulatory model showing fascial restrictions limiting venous/lymphatic return. -Well: Alternating compensatory *Common: LRLR *Uncommon: RLRL -Not Well: not alternating or Uncompensated |
Important Fascial Diaphragms | 1. Occipitoatlantal 2. Cervicothoracic (thoracic diaphragm) 3. Thoracolumbar (Abdominal diaphragm) 4. Lumbosacral (Pelvic diaphragm) |
Osteopathic approach to Lymphedema | 1. Release diaphragms 2. Treat restrictions 3. Normalize autonomic activity -Rib raising, sacral rocking, suboccipital relase. 4. Promote/adjust flow -Pectoral traction, pedal pump, thoracic pump. |