Definition

1. Noun:
   • The section of the aorta within the abdomen: The abdominal aorta is the large blood vessel that is the continuation of the descending thoracic aorta. It supplies oxygenated blood to the structures of the abdomen, pelvis, and lower limbs.

Usage

• The term "abdominal aorta" is a specific anatomical term used in medical and biological contexts.
• It functions as the main arterial trunk in the abdominal cavity before bifurcating (dividing) into the common iliac arteries.

Examples

• Noun:
  • The surgeon carefully clamped the abdominal aorta to control the bleeding.
  • Atherosclerosis can lead to the narrowing of the abdominal aorta.
  • An ultrasound can be used to examine the abdominal aorta for an aneurysm.

Advanced Usage

• "Abdominal aortic aneurysm (AAA)": A medical condition characterized by a localized enlargement or ballooning of the abdominal aorta.
  • Screening for an abdominal aortic aneurysm is recommended for older male smokers.

Variants and Related Words

• Aorta (n): The main and largest artery in the human body, originating from the left ventricle of the heart.
• Thoracic aorta (n): The part of the aorta that runs through the chest cavity.
• Aortic (adj): Pertaining to the aorta.
  • Aortic valve, aortic arch.

Synonyms

• Descending abdominal aorta: A more precise synonym emphasizing its continuity from the thoracic section.
• (None common): As a precise anatomical term, it has very few true synonyms in general English.

Related Phrases

• "Rupture of the abdominal aorta": A life-threatening medical emergency.
  • The patient was admitted due to a rupture of the abdominal aorta.
• "Dissection of the abdominal aorta": A condition where the inner layer of the artery tears.
  • The CT scan revealed a dissection of the abdominal aorta.

Noun

1. a branch of the descending aorta