Flashcards in Chapter 13 - Lymphatics Deck (11):
What drains into the R thoracic duct?
R head and neck
Lungs (except L upper lobe)
Where does the Left (major) duct drain into the venous system?
Junction of L subclavian and L internal jugular
What is the thoracic duct?
At what level does it turn around and go down?
The lymphatic duct that comes up from the thorax and drains into the left (major) lymphatic duct
Describe the path of the thoracic duct
Cisterna chyli (L2) --> aortic hiatus (T12) --> neck
Extrinsic forces on the lymphatic flow
Contraction of muscles
Pulsation of adjacent arteries
Respiratory movement (negative pressure)
Intrinsic forces on lymphatic flow
Smooth muscle contraction (SNS)
Interstitial fluid pressure
Factors that cause interstitial pressure to increase above 0 mmHg such that the lymphatic capillaries collapse (4)
All 4 result in what?
- Systemic HTN
- Hypoalbuminemia (starvation, kidney damage)
- Toxins (rattlesnake poison)
Increased fluid flow into the interstitium from the blood capillaries
Thoracic pump - function
Increase rib cage motion
Mobilize lymphatic fluid
Pedal pump - function
Encourage lymphatic movement, especially in CHILD
Basic treatment protocol for lymphatics (4)
1. Thoracic inlet
2. Rib raising or paraspinal inhibition
3. Redome the thoracoabdominal diaphragm
4. Lymphatic pump techniques