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Diagnostic Ultrasound - Abdomen and Pelvis

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Testes<br />

Anatomy: <strong>Pelvis</strong><br />

TESTIS AND EPIDIDYMIS<br />

Pampiniform plexus<br />

Testicular artery<br />

Head of epididymis<br />

Vas deferens<br />

Efferent ductules<br />

Rete testis<br />

Deferential artery<br />

Mediastinum testis<br />

Body of epididymis<br />

Seminiferous tubules<br />

Cremasteric artery<br />

Tunica albuginea<br />

Tail of epididymis<br />

Septa<br />

Graphic shows the testis is composed of densely packed seminiferous tubules, which are separated by thin fibrous septa. These tubules<br />

converge posteriorly, eventually draining into the rete testis. The rete testis continues to converge to form the efferent ductules, which<br />

pierce through the tunica albuginea at the mediastinum testis <strong>and</strong> form the head of the epididymis. Within the epididymis these tubules<br />

unite to form a single, highly convoluted tubule in the body, which finally emerges from the tail as the vas deferens. In addition to the<br />

vas deferens, other components of the spermatic cord include the testicular artery, deferential artery, cremasteric artery, pampiniform<br />

plexus, lymphatics, <strong>and</strong> nerves.<br />

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