The arcuate ligament ( /ɑːrˈkjuːɪt ˈlɪɡəmənt/) is a band of fibrous tissue that connects the diaphragm and lumbar vertebrae. The first part of the word is pronounced as "ahr-kyoo-it", with the stress on the second syllable. "Arcuate" derives from the Latin "arcus", meaning "a bow or arch", and refers to the curved shape of the ligament. The second part of the word, "ligament", is pronounced as "lig-uh-muhnt" with the stress on the first syllable. This word comes from the Latin "ligamentum", which means "band" or "tie".
Arcuate ligament refers to a group of three ligaments found in the human body that are shaped like an arch or arc. These ligaments are primarily located in the abdominal region and play a crucial role in providing structural support and stability to the surrounding organs and structures.
The three arcuate ligaments include the arcuate ligament of the diaphragm, the arcuate ligament of the pubis or Vogt’s ligament, and the arcuate ligament of the wrist. Each of these ligaments serves a different purpose and is located in a distinct area of the body.
The arcuate ligament of the diaphragm is a fibrous band that stretches across the diaphragm muscle. It acts as a pulley system for the abdominal muscles, providing leverage and support for respiration and control over abdominal pressure.
The arcuate ligament of the pubis is a thick ligament that spans between the two pubic bones. It adds strength and stability to the pubic symphysis, a joint located at the front of the pelvis. This ligament helps maintain pelvic integrity, especially during movements such as walking, running, or lifting heavy objects.
Lastly, the arcuate ligament of the wrist is a fibrous band located in the wrist joint. It contributes to the stability and proper alignment of the wrist bones, allowing for coordinated movements and strength in actions such as gripping objects.
Overall, the arcuate ligaments are vital anatomical structures that contribute to the stability and functionality of various body parts, enabling smooth movement and overall body support.
Ligamentum arcuatum.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "arcuate" comes from the Latin word "arcuatus", which means "arched" or "curved". "Ligament" originates from the Latin word "ligamentum", which means "band" or "tie". When combined, "arcuate ligament" refers to a ligament that has a curved or arched shape.