The arteria spermatica externa, also known as the external spermatic artery, is a small blood vessel found in the human reproductive system. It is responsible for supplying blood to various structures in the male genital region.
This artery arises from the abdominal aorta, which is the major blood vessel that carries oxygenated blood from the heart to the lower part of the body. Specifically, the arteria spermatica externa arises from the anterior or front surface of the abdominal aorta, just below the level of the renal arteries.
After its origin, the artery passes downwards and laterally, crossing over the ureter, which is a thin tube that carries urine from the kidneys to the urinary bladder. It then reaches the inguinal canal, a passage in the lower abdominal wall, extending from the deep inguinal ring to the superficial inguinal ring.
Within the inguinal canal, the arteria spermatica externa supplies blood to different structures including the vas deferens, which is the tube that carries sperm from the testes to the urethra. It also provides blood to the cremaster muscle, which is responsible for regulating the position of the testes in relation to the body.
Overall, the arteria spermatica externa plays a crucial role in maintaining proper blood supply to the male reproductive organs, ensuring their optimal function and health.
