Cremasteric artery

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(Redirected from External spermatic artery)

Cremasteric Artery[edit | edit source]

Illustration of the cremasteric artery and its surrounding structures.

The cremasteric artery is a small artery in the male that supplies blood to the cremaster muscle and other structures of the spermatic cord. It is a branch of the inferior epigastric artery, which itself is a branch of the external iliac artery.

Anatomy[edit | edit source]

The cremasteric artery arises from the inferior epigastric artery, which is a branch of the external iliac artery. It travels through the inguinal canal alongside the spermatic cord in males. In females, the artery is much smaller and accompanies the round ligament of the uterus.

Course[edit | edit source]

The artery enters the inguinal canal through the deep inguinal ring and travels within the spermatic cord. It supplies the cremaster muscle, which is responsible for raising and lowering the testis in response to temperature changes and other stimuli.

Branches[edit | edit source]

The cremasteric artery gives off small branches that supply the cremaster muscle and the coverings of the spermatic cord. It anastomoses with the testicular artery and the deferential artery, providing collateral circulation to the testis.

Function[edit | edit source]

The primary function of the cremasteric artery is to supply oxygenated blood to the cremaster muscle and the structures of the spermatic cord. The cremaster muscle plays a role in the thermoregulation of the testes, which is crucial for spermatogenesis.

Clinical Significance[edit | edit source]

In surgical procedures involving the inguinal region, such as hernia repairs, care must be taken to preserve the cremasteric artery to maintain adequate blood supply to the cremaster muscle and the spermatic cord. Damage to this artery can lead to complications such as testicular ischemia.

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