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OPP Lect 14

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.
Created by: WeeG