90. The unpaired visceral branches of the abdominal aorta - the coeliac trunk, the superior and inferior mesenteric arteries. Position and branches.

ABDOMINAL AORTA

120 + 121

Course

1. begins at the level of the aortic hiatus as the continuation of the thoracic aorta
2. descends in front of the vertebral column, on the left of the inferior vena cava
3. bifurcates into the common iliac arteries at the level of the 4th lumbar vertebra

Abdominal aorta (8)

• Visceral branches (6) → digestive tract.
• Single branches
• Celiac trunk
• Left Gastric art. – Stomach
• Splenic Art. – Spleen pancreas
• L. Gastro omental art.
• Pancreatic branches
• Common Hepatic Art. – liver gallbladder
• Proper hepatic art.
• R. Gastric art.
• Sup. Pancreaticoduodenal art.
• Superior mesenteric – to midgut
• inferior mesentric – to hindgut
• Paired branches
• Adrenal – S: Adrenal gland
• Renal 1st L – runs across the psoas major and enters the hilum of the kidney
• Gonadal (Testicular or Ovarian) – In male – supplies the testes In female – " " ovaries.
• Parietal branches (2)
• Inferior phrenic – S: the diaphragm
• Lumbar – S: vertebrae + spinal cord + abdominal wall.