Intersegmental artery

Intersegmental artery

The Intersegmental artery is a type of artery that is found in the vertebrate body. It is a significant component of the circulatory system, responsible for supplying blood to the vertebral column and the spinal cord.

Structure

The intersegmental arteries are a series of paired arteries that arise from the dorsal aorta. They run along the length of the vertebral column, supplying blood to each segment of the body. Each intersegmental artery gives off a dorsal branch and a ventral branch. The dorsal branch supplies the muscles and skin of the back, while the ventral branch supplies the body wall and viscera.

Development

During embryonic development, the intersegmental arteries are formed from the aortic arches. They initially appear as a series of paired vessels that run along the length of the notochord. As development progresses, these vessels fuse to form the dorsal aorta, from which the intersegmental arteries arise.

Function

The primary function of the intersegmental arteries is to supply blood to the vertebral column and the spinal cord. They also play a crucial role in the development of the vertebral artery and the radicular artery, which supply blood to the brain and the spinal cord, respectively.

Clinical significance

Abnormalities in the development or function of the intersegmental arteries can lead to a variety of medical conditions. For example, aneurysms can form in the intersegmental arteries, leading to a risk of rupture and hemorrhage. Additionally, blockages in these arteries can lead to ischemia and damage to the spinal cord.

See also

• Vertebral artery
• Radicular artery
• Dorsal aorta
• Aortic arches

References

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