Testicular artery

Testicular artery

The abdominal aorta and its branches (internal spermatic vessels labeled at right)

Vertical section of the testis, to show the arrangement of the ducts (internal spermatic artery labeled vertically at center)
Details
Source Abdominal aorta
Vein Testicular vein
Identifiers
Latin Arteria testicularis
Dorlands
/Elsevier		 a_62/12159482
TA A12.2.12.086
FMA 14758

Anatomical terminology

The testicular artery (the male gonadal artery, also called the internal spermatic arteries in older texts) is a branch of the abdominal aorta that supplies blood to the testis. It is a paired artery, with one for each of the testes.

It is the male equivalent of the ovarian artery. Because the testis is found in a different location than that of its female equivalent, it has a different course than the ovarian artery.

They are two slender vessels of considerable length, and arise from the front of the aorta a little below the renal arteries.

Each passes obliquely downward and lateralward behind the peritoneum, resting on the Psoas major, the right lying in front of the inferior vena cava and behind the middle colic and ileocolic arteries and the terminal part of the ileum, the left behind the left colic and sigmoid arteries and the iliac colon.

Each crosses obliquely over the ureter and the lower part of the external iliac artery to reach the abdominal inguinal ring, through which it passes, and accompanies the other constituents of the spermatic cord along the inguinal canal to the scrotum, where it becomes tortuous, and divides into several branches.

Two or three of these accompany the ductus deferens, and supply the epididymis, anastomosing with the artery of the ductus deferens; others pierce the back part of the tunica albuginea, and supply the substance of the testis.

The internal spermatic artery supplies one or two small branches to the ureter, and in the inguinal canal gives one or two twigs to the Cremaster.

Additional images

See also

References

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

External links

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