Formation and Flow of Lymph

• What are the 2 pumps that aid the return of venous blood to the heart and maintain the flow of lymph?

  Respiratory pump and skeletal pump
• Respiratory pump: maintain by PRESSURE changes that occur during INHALATION.
• In the respiratory pump, lymph flows from the ABDOMINAL REGION, where the pressure is HIGHER, toward the THORACIC REGION, where it is LOWER.
• Skeletal pump: skeletal muscle contractions COMPRESSES lymphatic vessels.