Trunk vessels (aorta, vena cava, abdominal branches)
Inferior phrenic arteries
Arteriae phrenicae inferiores
- Origin
- Paired arteries arising from the anterior abdominal aorta immediately superior to the celiac trunk
- Insertion
- Ascend along the diaphragmatic crura, giving off superior suprarenal branches
- Function
- Primary arterial supply to the diaphragm and upper poles of the suprarenal glands
- Innervation
- Phrenic autonomic plexus
- Movement & chain
- Arterial pulsatile flow
- Palpation
- Not palpated directly
- Clinical
- Major extrahepatic collateral feeder supplying dome-located hepatocellular carcinomas during transarterial chemoembolization (TACE).
- Segmental innervation
- C3-C5 and T12 levels
- In clinical practice
- Angiographic identification and superselective catheterization for TACE therapy
- Region in the model
- Trunk vessels (aorta, vena cava, abdominal branches)