Trunk vessels (aorta, vena cava, abdominal branches)
Musculophrenic veins
Venae musculophrenicae
- Origin
- Formed from tributaries in the anterolateral diaphragm and lower intercostal spaces
- Insertion
- Ascend along the costal margin to join the internal thoracic vein
- Function
- Drains the anterolateral diaphragm and 7th-9th intercostal spaces
- Innervation
- Vasomotor sympathetic fibers
- Movement & chain
- Low-pressure drainage
- Palpation
- Not palpated directly
- Clinical
- Minor thoracic wall venous drainage pathway.
- Segmental innervation
- T7-T9 spinal levels
- In clinical practice
- Thoracic incision surgical care
- Region in the model
- Trunk vessels (aorta, vena cava, abdominal branches)